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4820-01-256-0857

Rupturable Disk

4820012560857 012560857 MRK-4"-1100PSIG/72DEGF-316SST D3020

A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. It may include multiple pieces, such as a retainer ring, disk and vacuum support. It can be used independently or as a component part of a HEAD, SAFETY, PRESSURE RELIEF. For items furnished with a holder, see HEAD AND DISK, SAFETY, PRESSURE RELIEF. For items without a rupture pressure rating, see DISK, SOLID, PLAIN. Excludes DIAPHRAGM, VALVE, FLAT; DIAPHRAGM, VALVE, SPECIAL SHAPED; DISK, VALVE; and INSULATOR, DISK. View more Rupturable Disk

Managed by United States

NSN Created on 31 May 1987

Data Last Changed
May 2023

NATO Update Count
6

NATO Data Quality

4820-01-256-0857 DISK,RUPTURABLE 4820012560857 012560857 1/1 — NSN 4820-01-256-0857 (Generic Image) 1/1

Marketplace 4820-01-256-0857

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4820-01-256-0857 RQST NE

Restrictions 4820-01-256-0857

4820-01-256-0857 is a Rupturable Disk that does not have a nuclear hardened feature, but does have another critical feature or features such as tolerance, fit restriction or application. This item is a US Munitions List or Commerce Control List Item where the Item Manager, Equipment Specialist or Product Specialist must provide special demilitarization instructions. This item is not suspected to be hazardous. This item does not contain a precious metal.

Import and Export 4820-01-256-0857

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End Users 4820-01-256-0857

US Navy (N1HE)
Effective Date:: 1 Apr 1991
Supplementary Receivers:: GG; AMC 3 AMSC P IMC P IMCACTY HX

Approved Sources 4820-01-256-0857

Part Number
Manufacturer
Status
MRK-4"-1100PSIG/72DEGF-316SST: 06370 - Fike Corporation (Active); Incomplete Reference; RNCC 3 RNVC 1 DAC C
D3020: 06370 - Fike Corporation (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC C

Datasheet 4820-01-256-0857

Characteristic
Specifications
FIIG: A512V0
Criticality Code Justification [CRTL]: Zzzy
Reference Number Differentiating Characteristics [ZZZY]: Material Will Be In Accordance With Navicp Mech; Activity Hx Quality Control, Manufacturing And Testing Specifications.

Management Data 4820-01-256-0857

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Effective Date: Organization; Unit of Issue; Unit Price; Qty Unit Pack
Oct 2022: Department of the Navy (DN); EA; Subscribe; 1
Oct 2021: Department of the Navy (DN); EA; Subscribe; 1
Oct 2020: Department of the Navy (DN); EA; Subscribe; 1
Oct 2019: Department of the Navy (DN); EA; Subscribe; 1

Navy

Cognizance:

1H: Consumable material assigned to NAVICP MECH for inventory management
Naval Inventory Control Point, Mechanicsburg

Special Material ID:

X3: Nuclear Reactor Plant (NRP) material under the technical cognizance of the NAVSEA 08 special designed, manufactured and/or treated for use in a NRP or controls thereof. This category includes all other NRP items which are not coded X2 or X4.

Issue, Repair, Requisition Restriction Code:

C0: Critical item. Do not issue. Refer all requests to cognizant manager

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Freight Information 4820-01-256-0857

4820-01-256-0857 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 051080. A Sub NMFC of Z. It has a NMFC Description of FAUCETS,BIBCOCKS,GATES VALVES. 4820-01-256-0857 is rated as a variable freight class when transported by Less-Than Truckload (LTL) freight. 4820-01-256-0857 is rated as class 60 when transported by Less-Than Carload (LCL) rail or ocean freight. It has a Uniform Freight Classification (UFC) number of 29300 which rates the freight between FCL and LCL. It has a Water Commodity Code (WCC) of 594 for ocean manifesting and military sealift. 4820-01-256-0857 is not classified as a special type of cargo when transported by water. 4820-01-256-0857 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 4820-01-256-0857

Responsible Activity
Packaging Data Source: Primary Inventory Control Activity (PICA); Packaging Data does not meet current MIL-STD-2073-1E

Storage Environment: Unheated General Purpose

Item Pack Level (Unpackaged)

Item Size
Item Weight
Characteristics
Weight/Dimensions Category
Fragility
Item Preservation: --; --; --; 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; 5.5" H x 5.5" W x 1.0" L; --; --; Physical Protection; Any Suitable Process

Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking: No Requirement; MIL-P-130, Laminated and Creped Wrapping Paper; No Requirement; Not Applicable; UU-B-36, Bags, Paper Grocers; --

Intermediate Pack Level

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