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4730-00-375-6403

Tube Fitting Locknut

4730003756403 003756403 MIL-DTL-18866 36668 MS51860-55 6 080118C 6 070118C 10386315

An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also LOCKNUT, PIPE; NUT (1), TUBE COUPLING and NUT (1), PLAIN, HEXAGON. View more Tube Fitting Locknut

Managed by United States

NSN Created on 16 Mar 1974

Data Last Changed
November 2023

NATO Update Count
55

NATO Data Quality

ACTA Style A391 for 4730-00-375-6403 1/1 — NSN 4730-00-375-6403 (Identification) 1/1

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4730-00-375-6403 LOCKNUT,TUBE FITTING 10 EA NS

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4730-00-375-6403 LOCKNUT,TUBE FITTING 2 EA NS

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MS51860-55 LOCKNUT,TUBE FITTING 28 EA NS

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MS51860-55 LOCKNUT,TUBE FITTING 53 EA NS

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MS51860-55 LOCKNUT,TUBE FITTING 1315 EA NS

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MS51860-55 LOCKNUT,TUBE FITTING 324 EA NS

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4730-00-375-6403 LOCKNUT,TUBE FITTING RQST NS

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MS51860-55 LOCKNUT,TUBE FITTING 19 EA NS

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003756403.4730 LOCKNUT,TUBE FITTING 2 EA NS

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4730-00-375-6403 RQST NE

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4730-00-375-6403 RQST

Updated Every Day

4730-00-375-6403 RQST NE

Restrictions 4730-00-375-6403

4730-00-375-6403 is a Tube Fitting Locknut that does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. 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 4730-00-375-6403

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HTS Code: Subscribe to View HTS Code

End Users 4730-00-375-6403

US Army (A920)
Effective Date:: 1 Apr 2006
Former MOE Rule:: A181
Supplementary Receivers:: AJCLBDAZ; AMC 1 AMSC G IMC Z IMCACTY AZ

US Air Force (FXGC)
Effective Date:: 1 Apr 2006
Former MOE Rule:: FXAX; AMC 1 AMSC G IMC Z IMCACTY SX

US Marine Corps (MC40)
Effective Date:: 1 Apr 2006
Former MOE Rule:: MC01; AMC 1 AMSC G IMC Z IMCACTY PA

US Navy (N9BC)
Effective Date:: 1 Apr 2006
Former MOE Rule:: N9CD
Supplementary Collaborators:: GTKE; AMC 1 AMSC G IMC Z IMCACTY GH

Austria (WB01)
Effective Date:: 1 Feb 2005

Finland (WF01)
Effective Date:: 1 Jul 2015

Lithuania (WI01)
Effective Date:: 1 Feb 2001

Brazil (YA01)
Effective Date:: 1 Mar 2001

Spain (YB01)
Effective Date:: 1 Mar 1999

Singapore (YJ01)
Effective Date:: 1 Apr 1991

Morocco (YP01)
Effective Date:: 1 Dec 2011

Australia (ZA01)
Effective Date:: 1 Apr 1991

Belgium (ZB01)
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 Nov 1995

United Kingdom (ZK01)
Effective Date:: 1 Nov 2014

Netherlands (ZN01)
Effective Date:: 1 Apr 1991

Portugal (ZP01)
Effective Date:: 1 Apr 1991

Italy (ZR01)
Effective Date:: 1 Apr 1991

Denmark (ZS01)
Effective Date:: 1 Sep 1997

Greece (ZU01)
Effective Date:: 1 Apr 1991

Turkey (ZW01)
Effective Date:: 1 Aug 1993

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

Approved Sources 4730-00-375-6403

Part Number
Manufacturer
Status
MS51860-55: 96906 - Military Standards (Active); Definitive Standard; RNCC 2 RNVC 2 DAC 3
MIL-DTL-18866: 81349 - Military Specifications (Active); Incomplete Standard; RNCC 4 RNVC 1 DAC E
6 070118C: 0U583 - Sae International (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC 5
6 080118C: 0U583 - Sae International (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC 5
36668: 81616 - York Industries, Inc. (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC A
6 080118C: 81343 - Society Of Automotive Engineers Inc (Replaced); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 6
6 070118C: 81343 - Society Of Automotive Engineers Inc (Replaced); Canceled/Obsolete; RNCC 5 RNVC 9 DAC E
4730003756403: SCY13 - E.C.A Etablissement (Replaced); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 9
10386315: A486G - Nimikkeistokeskus Ncb Finland (Active); NATO Reference; RNCC 6 RNVC 9 DAC 9
4730003756403: A00AM - E.C.A Etablissement Central Des (Active); NATO Reference; RNCC 6 RNVC 9 DAC 9

Datasheet 4730-00-375-6403

Characteristic
Specifications
FIIG: A021A0
Material [MATT]: Steel Overall
Nominal Tube Outside Diameter [CQRJ]: 0.375 Inches
Nominal Thread Size [CQJX]: 0.562 Inches
Nut Height [ADEA]: 0.270 Inches Nominal
Nut Style [ACTA]: Tube Fitting Locknut
Width Across Flats [ASDB]: 0.812 Inches Nominal
Surface Treatment [SFTT]: Cadmium Overall
Thread Direction [AAJF]: Right-Hand
Thread Class [AAJD]: 2B
Thread Quantity Per Inch [CMLP]: 18
Thread Series [BZRR]: Unf

Weapon Systems (WSDC) 4730-00-375-6403

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DLA Procurement Analysis 4730-00-375-6403

Last Stock Position:: 4688 In Stock
DLA Administrative Lead Time:: Subscribe
DLA Production Lead Time:: Subscribe

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Management Data 4730-00-375-6403

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Effective Date: Organization; Unit of Issue; Unit Price; Qty Unit Pack
Oct 2022: Department of the Army (DA); EA; Subscribe; 1
Oct 2021: Department of the Air Force (DF); EA; Subscribe; 1
Apr 2021: Department of the Air Force (DF); EA; Subscribe; 1
Feb 2021: US Marine Corps (DM); EA; Subscribe; 1
Oct 2019: Department of the Army (DA); EA; Subscribe; 1

Army

Materiel Category and Inventory Manager:

J: Ground Forces Support 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:

SX: SICA RESIDUAL MMAC-OC-ALC

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

Physical Category:

1: Bin

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Freight Information 4730-00-375-6403

4730-00-375-6403 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 093486. A Sub NMFC of Z. It has a NMFC Description of BOLTS,NUTS OR SCREWS, NOI (SUB 3). 4730-00-375-6403 is rated as a variable freight class when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 48950 which rates the freight between FCL and LCL. 4730-00-375-6403 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 573 for ocean manifesting and military sealift. 4730-00-375-6403 is not classified as a special type of cargo when transported by water. 4730-00-375-6403 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 4730-00-375-6403

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: --; --; Bare Metal Item; Over 10lb; Less than 85G; Special Requirement

Unit Pack Level (Packaged)

Quantity per Pack
Unit Size
Unit Weight
Unit Cube
Preservation Method
Cleaning/Drying: 1; --; --; --; Physical Protection; Any Suitable Process

Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking: No Requirement; --; --; --; PPP-B-566, PPP-B-676, or ASTM-D5118, Folding, Setup or Fiberboard Box; No special marking

Intermediate Pack Level

Quantity of Unit Packs
Container: ASTM-D5118, Type CF, Class Weather-Resistant, Corrugated Fiberboard Box

Procurement History 4730-00-375-6403 35 Records

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Contract: Date; CAGE; Quantity; Net Price; Std Price
SPE7MC18V2910: 18 Jan 2018; Subscribe; 1786; Subscribe; Subscribe
SPE7M517V6568: 06 Jun 2017; Subscribe; 981; Subscribe; Subscribe
SPE7M917V0964: 14 Nov 2016; Subscribe; 983; Subscribe; Subscribe
SPE7M316M5429: 15 Sep 2016; Subscribe; 200; Subscribe; Subscribe
SPM7LX10D9W06042A: 14 Jun 2016; Subscribe; 60; Subscribe; Subscribe
SPM7LX10D9W06027W: 12 May 2016; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W06022P: 28 Apr 2016; Subscribe; 100; Subscribe; Subscribe
SPM7LX10D9W06003U: 20 Mar 2016; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W06003D: 18 Mar 2016; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W069632: 01 Feb 2016; Subscribe; 4; Subscribe; Subscribe
SPM7LX10D9W069282: 23 Dec 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W069281: 23 Dec 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W069173: 10 Dec 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W069056: 25 Nov 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W068990: 20 Nov 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W068904: 11 Nov 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W068757: 27 Oct 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W068371: 08 Sep 2015; Subscribe; 2; Subscribe; Subscribe
SPM7LX10D9W067689: 22 Jun 2015; Subscribe; 10; Subscribe; Subscribe
SPM7LX10D9W067569: 05 Jun 2015; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W066793: 09 Mar 2015; Subscribe; 4; Subscribe; Subscribe
SPM7LX10D9W065300: 19 Aug 2014; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W063985: 03 Jan 2014; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W063949: 20 Dec 2013; Subscribe; 8; Subscribe; Subscribe
SPM7LX10D9W063219: 23 Jul 2013; Subscribe; 5; Subscribe; Subscribe
SPM7LX10D9W063138: 02 Jul 2013; Subscribe; 8; Subscribe; Subscribe
SPM7LX10D9W062927: 03 Jun 2013; Subscribe; 12; Subscribe; Subscribe
SPM7LX10D9W062855: 10 May 2013; Subscribe; 4; Subscribe; Subscribe
SPM7LX10D9W062846: 09 May 2013; Subscribe; 65; Subscribe; Subscribe
SPM7LX10D9W062756: 23 Apr 2013; Subscribe; 10; Subscribe; Subscribe
SPM7LX10D9W062751: 22 Apr 2013; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W062752: 22 Apr 2013; Subscribe; 10; Subscribe; Subscribe
SPM7LX10D9W062753: 22 Apr 2013; Subscribe; 1; Subscribe; Subscribe
SPM7LX10D9W062748: 22 Apr 2013; Subscribe; 2; Subscribe; Subscribe
SPM7LX10D9W062706: 05 Apr 2013; Subscribe; 20; Subscribe; Subscribe

Contracting Technical Data File (CTDF) 4730-00-375-6403 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:
Special Packaging Instruction Number (SPIN):
Special Packaging Instruction Number Revision:
Special Packaging Instruction Number Date:
Pallet Reference Number Required:

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Related Documents 4730-00-375-6403 5+ Documents (More...)

Restrictions 4730-00-375-6403

Import and Export 4730-00-375-6403

End Users 4730-00-375-6403

Approved Sources 4730-00-375-6403

Datasheet 4730-00-375-6403

Weapon Systems (WSDC) 4730-00-375-6403

DLA Procurement Analysis 4730-00-375-6403

Management Data 4730-00-375-6403

Army

Air Force

Navy

Marine Corps

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Freight Information 4730-00-375-6403

Packaging Data 4730-00-375-6403

Item Pack Level (Unpackaged)

Unit Pack Level (Packaged)

Intermediate Pack Level

Procurement History 4730-00-375-6403 35 Records

Contracting Technical Data File (CTDF) 4730-00-375-6403 October 2021

Criticality and Quality

Commercial Properties

Restrictions

Packaging Requirements