Premium Information is available for this item - Upgrade for $1 a day

5905-01-059-2502

Film Fixed Resistor

5905010592502 010592502 MIL-PRF-39017/1 122200-1083 2501480-59 ERD25TJ272 3255387-23 RLR07G2701GS C4272J B95241-A302-M1 2606417-59 S9546-272 944917-2701 7900183-41 9003043-37 M107-204 M66-110 745-0908-420 11310-342-G RNR70C2701BS 94402166 6710657-23 5043C-2.7K0J 12178-272 5043CX2K700J 471922-2722 29SJ250-2.7K

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of either a thin layer of conductive material, containing either binders or insulating materials, deposited on an insulated form; or an alloy of metal and ceramic materials, usually fused to an insulated form. Opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the resistor. See also ATTENUATOR, FIXED and RESISTOR, FIXED, COMPOSITION. Excludes carbon composition type resistors. View more Film Fixed Resistor

Managed by United States

NSN Created on 9 Apr 1978

Data Last Changed
November 2023

NATO Update Count
83

NATO Data Quality

STYL Style 14 for 5905-01-059-2502 1/1 — NSN 5905-01-059-2502 (Identification) 1/1

Marketplace 5905-01-059-2502

Need Help?
Request a Quotation from participating marketplace vendors

Subscribe to View Vendor Details...

MILR39017/1 RESISTOR,FIXED,FILM 902 EA NS

MIL-R39017/1 RESISTOR,FIXED,FILM 3359 EA NS

Subscribe to View Vendor Details...

MILR22684-5 RESISTOR,FIXED,FILM 150 EA NS

Subscribe to View Vendor Details...

RLR07C2701GS RESISTOR,FIXED,FILM 984 EA NS

RLR07C2701GP RESISTOR,FIXED,FILM 48 EA NS

RLR07C2701GR RESISTOR,FIXED,FILM 14 EA NS

RLR07C272GR RESISTOR,FIXED,FILM 30 EA NS

Subscribe to View Vendor Details...

5905-01-059-2502 RESISTOR,FIXED,FILM 1 EA NS

Subscribe to View Vendor Details...

RE81-190 RESISTOR,FIXED,FILM 1 EA NS

5905-01-059-2502 RESISTOR,FIXED,FILM 1 EA NS

Subscribe to View Vendor Details...

RLR07C2701GS RESISTOR,FIXED,FILM 100 EA NS

Subscribe to View Vendor Details...

RLR07C2701GS RESISTOR,FIXED,FILM 7 EA NS

MIL-PRF-39017/1 RESISTOR,FIXED,FILM 32 EA NS

Subscribe to View Vendor Details...

RLR07C2701GS RESISTOR,FIXED,FILM 3 EA NS

Subscribe to View Vendor Details...

RLR07C2701GS RESISTOR,FIXED,FILM 1816 EA NS

RLR07C272GR RESISTOR,FIXED,FILM 85 EA NS

RLR07C2701GR RESISTOR,FIXED,FILM 1086 EA NS

RLR07C2701GP RESISTOR,FIXED,FILM 500 EA NS

RLR07C2701GM RESISTOR,FIXED,FILM 500 EA NS

Subscribe to View Vendor Details...

RLR07C2701GS RESISTOR,FIXED,FILM 3 EA NS

Subscribe to View Vendor Details...

RLR07C272GR RESISTOR,FIXED,FILM 2 EA NS

MIL-R39017/1 RESISTOR,FIXED,FILM 1 EA NS

5905-01-059-2502 RESISTOR,FIXED,FILM 2 EA NS

Subscribe to View Vendor Details...

RLR07C2701GP RESISTOR,FIXED,FILM 161 EA NS

Subscribe to View Vendor Details...

RLR07C272GS RESISTOR,FIXED,FILM 50 EA NS

RLR07C272JR RESISTOR,FIXED,FILM 240 EA NS

RLR07C272GR RESISTOR,FIXED,FILM 80 EA NS

RLR07C2701GS RESISTOR,FIXED,FILM 11435 EA NS

RLR07C2701GR RESISTOR,FIXED,FILM 1232 EA NS

RLR07C2701GM RESISTOR,FIXED,FILM 400 EA NS

Updated Every Day

5905-01-059-2502 RQST NE

Updated Every Day

5905-01-059-2502 RQST

Updated Every Day

5905-01-059-2502 RQST NE

Restrictions 5905-01-059-2502

5905-01-059-2502 is a Film Fixed Resistor that is specifically designed to be or selected as being nuclear hard (ie. it will continue to perform its designed function in an environment created by a nuclear explosion). It does not have any other critical features. Demilitarization of this item has been confirmed and is not currently subject to changes. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.

Import and Export 5905-01-059-2502

Schedule B: Subscribe to View Schedule B
HTS Code: Subscribe to View HTS Code

End Users 5905-01-059-2502

US Army (A918)
Effective Date:: 1 Aug 2006
Former MOE Rule:: A196
Supplementary Receivers:: AZCTCLBFBD; AMC 1 AMSC T IMC Z IMCACTY CD

MOE Rule:: BGX1
Effective Date:: 1 Sep 2007; AMC 1 AMSC T

US Coast Guard (C911)
Effective Date:: 1 Aug 2006
Former MOE Rule:: C007; AMC 1 AMSC T

US Air Force (FXGX)
Effective Date:: 1 Aug 2006
Former MOE Rule:: FXTX; AMC 1 AMSC T IMC Z IMCACTY SX

NASA (G860)
Effective Date:: 1 Apr 1991; AMC 0 AMSC 0 AAC C

US Marine Corps (MC49)
Effective Date:: 1 Aug 2006
Former MOE Rule:: MC13; AMC 1 AMSC T IMC Z IMCACTY PA

US Navy (N9BN)
Effective Date:: 1 Aug 2006
Former MOE Rule:: N9ND
Supplementary Collaborators:: GTKEHXHSHD
Supplementary Receivers:: JV; AMC 1 AMSC T IMC Z IMCACTY HD

MOE Rule:: RGX1
Effective Date:: 1 Aug 2006
Former MOE Rule:: R479
Supplementary Collaborators:: TR; AMC 1 AMSC T

MOE Rule:: S911
Effective Date:: 1 Aug 2006
Former MOE Rule:: S007; AMC 1 AMSC T IMC Z IMCACTY XN

Austria (WB01)
Effective Date:: 1 Feb 2005

Poland (WP01)
Effective Date:: 1 Nov 2003

Bulgaria (WU01)
Effective Date:: 1 Nov 2002

Brazil (YA01)
Effective Date:: 1 Oct 2000

Spain (YB01)
Effective Date:: 1 Apr 1991

Singapore (YJ01)
Effective Date:: 1 Apr 1991

Saudi Arabia (YS01)
Effective Date:: 1 Feb 2015

Malaysia (YW01)
Effective Date:: 1 Jul 1993

Australia (ZA01)
Effective Date:: 1 Dec 2012

Belgium (ZB01)
Effective Date:: 1 Apr 1991

Canada (ZC01)
Effective Date:: 1 Apr 1991

New Zealand (ZE01)
Effective Date:: 1 Apr 1991

France (ZF01)
Effective Date:: 1 Apr 1991

Germany (ZG01)
Effective Date:: 1 Apr 1991

Republic of Korea (ZH01)
Effective Date:: 1 Apr 1991

United Kingdom (ZK01)
Effective Date:: 1 Apr 1991

Netherlands (ZN01)
Effective Date:: 1 Apr 1991

Portugal (ZP01)
Effective Date:: 1 May 1998

Italy (ZR01)
Effective Date:: 1 Apr 1991

Denmark (ZS01)
Effective Date:: 1 Apr 1991

Norway (ZT01)
Effective Date:: 1 Apr 1991

Greece (ZU01)
Effective Date:: 1 Apr 2008

Turkey (ZW01)
Effective Date:: 1 Dec 1995

NATO Maintenance and Supply Agency (ZX01)
Effective Date:: 1 Apr 1991

Approved Sources 5905-01-059-2502

Part Number
Manufacturer
Status
RLR07C2701GS: 81349 - Military Specifications (Active); Definitive Standard; RNCC 2 RNVC 2 DAC E
MIL-PRF-39017/1: 81349 - Military Specifications (Active); Incomplete Standard; RNCC 4 RNVC 1 MEDALS DAC E
B95241-A302-M1: C4751 - Tdk Electronics Ag (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC 3
122200-1083: 64415 - Selex Es Inc (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC 5
RE81-190: 08748 - Eldec Aerospace Corp (Active); Secondary Buy; RNCC 5 RNVC 2 DAC 4
RLR07C2701GM: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C2701GP: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C272GR: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C2801GM: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
B95241-A302-M1: D1180 - Epcos Ag Abt. Pr Roe K Pm (Replaced); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C2701JR: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
MIL-R-39017/1: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 MEDALS DAC E
RLR0C272JR: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C272JR: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C272GS: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
RLR07C2701GR: 81349 - Military Specifications (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 3
5905PL0334310: 9009H - Jednolity Indeks Materialowy - (Active); NATO Reference; RNCC 6 RNVC 9 DAC 9
2501480-59: 07187 - Honeywell International Inc. (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
ERD25TJ272: 54473 - Matsushita Electric Corp Of America (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
3255387-23: 53711 - Naval Sea Systems Command (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
RLR07G2701GS: 81349 - Military Specifications (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
C4272J: 16299 - Avx Corp Raleigh Plant (Obsolete); Advisory Reference; RNCC C RNVC 1 DAC 6
B95241-A302-M1: 25088 - Siemens Corp (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
2606417-59: 06424 - Alliant Techsystems Operations Llc (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
S9546-272: 64547 - Honeywell International, Inc (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
944917-2701: 06481 - Northrop Grumman Systems Corporation (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
7900183-41: 90563 - Mosler Inc (Obsolete); Advisory Reference; RNCC C RNVC 1 DAC 6
9003043-37: 13799 - H & E Venture, Llc (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
M107-204: 54418 - Miltope Corporation (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
M66-110: 54418 - Miltope Corporation (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
745-0908-420: 13499 - Rockwell Collins, Inc. (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
11310-342-G: 12763 - Dynalec Corporation (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
745-0908-420: 81205 - The Boeing Company (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
RNR70C2701BS: 81349 - Military Specifications (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
94402166: 59661 - Syntegra / Usa/ Inc (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
6710657-23: 53711 - Naval Sea Systems Command (Active); Advisory Reference; RNCC C RNVC 1 DAC A
5043C-2.7K0J: 80031 - Mepco/Electra Inc (Obsolete); Advisory Reference; RNCC C RNVC 1 DAC 6
12178-272: 23386 - Thales Defense & Security Inc (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
5043CX2K700J: 19701 - North American Philips Corp Philips (Active); Advisory Reference; RNCC C RNVC 1 DAC 6
471922-2722: 06KW9 - Lucent Technologies Inc (Replaced); Advisory Reference; RNCC C RNVC 1 DAC 6
29SJ250-2.7K: 1JN02 - Mouser Electronics, Inc. (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
OK2725: 44655 - Ohmite Holding, L.L.C. (Active); Advisory Reference; RNCC C RNVC 1 DAC 5
005 ITT 05101 4270: N0002 - Alcatel-Lucent Norway As (Replaced); Advisory Reference; RNCC C RNVC 1 DAC 6
M22684-05-1084: 81349 - Military Specifications (Active); Transferred; RNCC E RNVC 8 DAC 4
MR25DG272: K0004 - Vishay (Active); Transferred; RNCC E RNVC 8 DAC 6
134500-0083: 16299 - Avx Corp Raleigh Plant (Obsolete); Transferred; RNCC E RNVC 8 DAC 5
MR-25-2K7-1: K0004 - Vishay (Active); Transferred; RNCC E RNVC 8 DAC 2
116447-272: 18338 - Xerox Corp Xerox Documentation And (Obsolete); Transferred; RNCC E RNVC 8 DAC 2
24773-283: 51190 - Viavi Solutionsllc (Active); Transferred; RNCC E RNVC 8 DAC 2
955141-14-0083: 19701 - North American Philips Corp Philips (Active); Transferred; RNCC E RNVC 8 DAC 5
11040766-77: 18876 - Us Army Aviation And Missile Command (Active); Transferred; RNCC E RNVC 8 DAC 1
RLR07C2701JP: 81349 - Military Specifications (Active); Transferred; RNCC E RNVC 8 DAC E
24773-283L: 51190 - Viavi Solutionsllc (Active); Transferred; RNCC E RNVC 8 DAC A
MILR22684-5: 81349 - Military Specifications (Active); Transferred; RNCC E RNVC 8 DAC 4
RL07S272JTX: 81349 - Military Specifications (Active); Transferred; RNCC E RNVC 8 DAC 4

Datasheet 5905-01-059-2502

Characteristic
Specifications
FIIG: A001A0
Electrical Resistance [AAPP]: 2.700 Kilohms
Ambient Temp In Deg Celsius At Full Rated Power [AAQF]: 70.0
Ambient Temp In Deg Celsius At Zero Percent Rated Power [AAQG]: 150.0
Body Diameter [ABPM]: 0.090 Inches Nominal
Body Length [ADAQ]: 0.250 Inches Nominal
Nuclear Hardness Critical Feature [NHCF]: Hardened
Inclosure Method [AAQZ]: Encapsulated
Power Dissipation Rating In Watts [AEFB]: 0.250 Free Air
Reliability Failure Rate Level In Percent [AARH]: 0.001
Reliability Indicator [AARG]: Established
Resistance Tolerance In Percent [AAPQ]: -2.000/+2.000
Specification/Standard Data [ZZZK]: 81349-Mil-R-39017/1 Government Specification
Style Designator [STYL]: Axial Terminal Each End
Terminal Length [ABJT]: 1.500 Inches Nominal
Terminal Type [AARB]: Wire Lead
Test Data Document [TEST]: 81349-Mil-Prf-39017 Specification (Includes Engineering Type Bulletins, Brochures,Etc., That Reflect Specification Type Data In Specification Format; Excludes Commercial Catalogs, Industry Directories, And Similar Trade Publications, Reflecting General Type Data On Certain Environmental And Performance Requirements And Test Conditions That Are Shown As "Typical", "Average", "Nominal", Etc.).

Weapon Systems (WSDC) 5905-01-059-2502

Subscribe
View WSDC

Subscribe to View Weapon System Codes...

Subscribe
View Data

DLA Procurement Analysis 5905-01-059-2502

Last Stock Position:: 43913 In Stock
DLA Administrative Lead Time:: Subscribe
DLA Production Lead Time:: Subscribe

Subscribe to View DLA Inventory and Forecast...

Management Data 5905-01-059-2502

Subscribe
View Prices

Effective Date: Organization; Unit of Issue; Unit Price; Qty Unit Pack
Oct 2022: US Coast Guard (GP); EA; Subscribe; 5
Oct 2021: Defense Logistics Agency (DS); EA; Subscribe; 5
Oct 2020: Defense Logistics Agency (DS); EA; Subscribe; 5
Feb 2020: Department of the Air Force (DF); EA; Subscribe; 5

MOE: USC; Code; Statement; Order of Use; Jump To Code; Qty Per Assy; UOM; Technical Document; Quantative Expression
US Marine Corps (DM): M; 0; Reversal Of Phrase Code Z 5905-00-141-1119
US Marine Corps (DM): M; 0; Reversal Of Phrase Code Z 5905-00-491-2638
US Marine Corps (DM): M; 0; Reversal Of Phrase Code Z 5905-00-959-9307
US Marine Corps (DM): M; 0; Reversal Of Phrase Code Z 5905-01-128-0025

Army

Materiel Category and Inventory Manager:

Q: Electronics Materiel (DLA/GSA Items)

Appropriation and Budget Activity:

2: Stock Fund Secondary Items

Management Inventory Segment:

2: Non-Repairable Items(Exclusive of Insurance and Provisioning Items)
This code will be used to identify items, which are not reparable.

Weapons System / End Item / Homogeneous Group:

00: DLA/GSA Material
DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item

Accounting Requirements:

X: Expendable item.An item of Army property coded with an ARC of X in the AMDF. Expendable items require no formal accountability after issue from a stock record account.Commercial and fabricated items similar to items coded X in the AMDF are considered expendable items.

Air Force

Fund:

SF: Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point

Budget:

9: 57X4921.070 - General Support DIV - Air Force decentralized managed expense items (ERRC XB3, XF3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors

Aggregation Code:

EH: ELECTRONIC COMPONENTS

Price Validation Code:

V: The current standard price has been validated.
The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
ZOP or Standard price challenges are permissible but must be supported by adequate justification.

Expendability Recoverability Repairability:

N: Expendable. Condemn at User. Stock Fund (except Munitions).

Navy

Cognizance:

9B: Navy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg

Marine Corps

Stores Account:

1: Stock Fund Account Item

Combat Essentiality:

5: Critical Repair Part to a Combat Essential End Item

Echelon Management:

B2

Operational Test:

: No Special Procedures

NATO Stock Numbers Related to 5905-01-059-2502

5905-99-193-2376 5905-21-883-6811 5905-21-883-6148 5905-17-105-2255 5905-21-914-6069 5905-12-160-1090 5905-99-013-6503 5905-99-725-3587 5905-99-415-1931 5905-99-375-3431 5905-99-772-3147 5905-99-021-9139 5905-99-021-9613 5905-99-021-9920 5905-99-021-9509 5905-99-754-5639 5905-99-625-7265 5905-99-021-6290

Freight Information 5905-01-059-2502

5905-01-059-2502 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 062960. A Sub NMFC of X. It has a NMFC Description of REOSTATS/PARTS NOI. 5905-01-059-2502 is rated as class 77.5 when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 35140 which rates the freight between FCL and LCL. 5905-01-059-2502 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 72D for ocean manifesting and military sealift. 5905-01-059-2502 is classified as an Electrostatic Sensitive Device (ESD) when transported by water. 5905-01-059-2502 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.

Packaging Data 5905-01-059-2502

Responsible Activity
Packaging Data Source: Primary Inventory Control Activity (PICA); --

Item Pack Level (Unpackaged)

Item Size
Item Weight
Characteristics
Weight/Dimensions Category
Fragility
Item Preservation: --; --; --; 0.25 lb or less, one dimension 2" or less, other dimensions less than 24"; 85 to 110G; No Requirement

Unit Pack Level (Packaged)

Quantity per Pack
Unit Size
Unit Weight
Unit Cube
Preservation Method
Cleaning/Drying: 5; --; --; --; --; Any Suitable Process

Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking: No Requirement; No Requirement; No Requirement; Not Applicable; --; Special requirements

Intermediate Pack Level

Quantity of Unit Packs
Container: PPP-B-566, PPP-B-676, or ASTM-D5118, Folding, Setup or Fiberboard Box

Procurement History 5905-01-059-2502 1 Records

Subscribe
View Prices

Contract: Date; CAGE; Quantity; Net Price; Std Price
SPE7M219P0461: 03 Dec 2018; Subscribe; 34300; Subscribe; Subscribe

Contracting Technical Data File (CTDF) 5905-01-059-2502 October 2021

Criticality and Quality

Critical Item Code:: X
Flight Safety:
Life Support:
Certified Samples:
Serialization:
First Article Test (FAT):
Certificate of Quality Compliance:
Production Lot Testing:
Special Testing:
Qualified Products List (QPL):

Commercial Properties

Government Furnished Material:
Government Furnished Tooling:
Government Furnished Property:
Price Evaluation Code:
Diminshing Manufacturing Sources:
Warranty:
Commerical Off The Shelf (COTS):
End Item Application:
Auctioning Candidate:
Source of Procurement:
Contract Option:

Restrictions

Boeing Rights Guard:
Export Controlled:
Controlled Technical Data Package (TDP):
Restricted Technical Data Package (TDP):
Contains Classified Material
Weapons System Indicator Code (WSIC):: F

Packaging Requirements

Packaging Determination Table:
Packaging Review Code:: N
Special Packaging Instruction Number (SPIN):
Special Packaging Instruction Number Revision:
Special Packaging Instruction Number Date:
Pallet Reference Number Required:

Subscribe
View CTDF

Subscribe to View CTDF Details...

Marketplace 5905-01-059-2502

Related Documents 5905-01-059-2502 5+ Documents (More...)

Restrictions 5905-01-059-2502

Import and Export 5905-01-059-2502

End Users 5905-01-059-2502

Approved Sources 5905-01-059-2502

Datasheet 5905-01-059-2502

Weapon Systems (WSDC) 5905-01-059-2502

DLA Procurement Analysis 5905-01-059-2502

Management Data 5905-01-059-2502

Army

Air Force

Navy

Marine Corps

NATO Stock Numbers Related to 5905-01-059-2502

Freight Information 5905-01-059-2502

Packaging Data 5905-01-059-2502

Item Pack Level (Unpackaged)

Unit Pack Level (Packaged)

Intermediate Pack Level

Procurement History 5905-01-059-2502 1 Records

Contracting Technical Data File (CTDF) 5905-01-059-2502 October 2021

Criticality and Quality

Commercial Properties

Restrictions

Packaging Requirements