The Valve Core, cataloged under National Stock Number 2640-00-060-3543, is classified within Federal Supply Class 2640 (Tire Rebuilding and Tire and Tube Repair Materials) of the Tires and Tubes group. The manufacturer of record is Elbit Systems Electro-Optics Elop Ltd. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2640-00-060-3543 |
| Primary Part Number | 20002911L |
| Item Name | Valve Core |
| FSC / FSG | 2640 / 26 — Tire Rebuilding and Tire and Tube Repair Materials |
| Manufacturer | Elbit Systems Electro-Optics Elop Ltd |
| Status | ACTIVE |
| Tire Valve Designation | TR-C-1 |
| FSC Application Data | PNEUMATIC TIRE |
| Core Environmental Protection | HEAT RESISTANT |
| Spring Tension Type | HIGH |
| Accessory Type | VALVE |
| Size Designation | STANDARD |
| Material | STEEL CORROSION RESISTING SPRING |
| Item Type Category | ACCESSORY |
| Commercial Core Length Designator | SHORT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 20002911L | Elbit Systems Electro-Optics Elop Ltd (ISR) |
| MS51377-2 | Goriziane Group Spa (ITA) |
| Reference | Meaning |
|---|---|
| 8500168-2 | 5/9 Secondary reference Electrodynamics Inc Div L3harris Electrodynamics Inc |
| 100BB | 5/9 Secondary reference Eaton Corporation Dba Air Controls Division Div Air Controls Division |
| 2640000603543 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| MS51377-2 | 5/9 Secondary reference Indra Sistemas, Sociedad Anonima |
| 100HV | 5/9 Secondary reference Eaton Corporation Dba Air Controls Division Div Air Controls Division |
| MS51377-2 | 5/9 Secondary reference U.S. Government activity |
| 21547 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2640-00-060-3543 is a Valve Core, manufactured by Elbit Systems Electro-Optics Elop Ltd, classified under FSC 2640, Tire Rebuilding and Tire and Tube Repair Materials. Status: active.
NSN 2640-00-060-3543 has 2 manufacturer part numbers on file: 20002911L (Elbit Systems Electro-Optics Elop Ltd), MS51377-2 (Goriziane Group Spa).
5 possible matches (shared part number, not a government interchangeability claim): 5310-00-706-8107, 6610-00-939-2611, 5950-01-095-8282. Verify interchangeability with system specifications before substitution.
Key specifications for 20002911L: Tire Valve Designation: TR-C-1; FSC Application Data: PNEUMATIC TIRE; Core Environmental Protection: HEAT RESISTANT; Spring Tension Type: HIGH. 9 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.