Product Details | RUPTURABLE DISK

4820-01-257-7256 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.

Part Alternates: LOT 85070294-1, LOT850702941, TED 77-30-008-04, TED773000804, P10S, 4820-01-257-7256, 01-257-7256, 4820012577256, 012577256

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 23 JUN 1987 01-257-7256

Cross Reference | NSN 4820-01-257-7256

Part Number Cage Code Manufacturer
LOT 85070294-1 32874 BS&B SAFETY SYSTEMS, L.L.C.
P10S 72741 DORMAN PRODUCTS, INC. DBA MOTORMITE DIVISION
TED 77-30-008-04 32874 BS&B SAFETY SYSTEMS, L.L.C.

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Technical Data | NSN 4820-01-257-7256

Characteristic Specifications
CROSS-SECTIONAL SHAPE CONCAVE
SPECIAL FEATURES USED ON HYDRAULIC PUSHER 1450-00-302-2758;T.O.21M-LGM30F-4 -4 F107;USED IN THE HYDRAULIC RAM FOR OPENING THE MAINTENANCE DOOR OF THE LAUNCH FACILITY
III END ITEM IDENTIFICATION LGM-30 MINUTEMAN MISSILE
MANUFACTURERS CODE 32874
DESIGN CONTROL REFERENCE TED 77-30-008-04

Restrictions/Controls & Freight Information | NSN 4820-01-257-7256

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 013120 ALUMINUM ARTICLE NOI SUB 6
Less than car load rating J 100.2
Less than truck load rating J 100.2
Water commodity Code 576 unknown
Originating Activity Code SU Ogden Air Logistics Center
Hill AFB, UT 84056-5609
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
Air Special Handling Z No special handling required.
Special Handling Code Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-01-257-7256

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) 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.
Materiel Management Aggregation CodeAHSU:LGM-30 MINUTEMAN
Price ValidationP The current standard price is the initial negotiated provisioned price.
  • This is the price paid by DoD for the item as the result of price negotiation of the Provisioned Item Order (PIO) or other initial negotiated price.
  • ZOP or Standard Price challenges are permissible but should be supported with adequate justification.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each