The Ring,piston, cataloged under National Stock Number 4310-01-168-9945, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Sam Winer Motors, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4310-01-168-9945 |
| Primary Part Number | 77263 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Sam Winer Motors, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77263 PRIMARY | Sam Winer Motors, Inc. (USA) |
| 217687 | Cadillac Gage Textron Inc. (USA) |
| Reference | Meaning |
|---|---|
| 58897 | 5/9 Secondary reference Paccar Winch Inc Dba Paccar Winch Division |
| 77263 | 5/9 Secondary reference Paccar Winch Inc Dba Paccar Winch Division |
| 77263 | 5/9 Secondary reference Paccar Government Group Co Yarrow Bay Office Pk |
| 10512603 | 7/2 Vendor item drawing reference General Dynamics Land Systems Canadacorp |
NSN 4310-01-168-9945 is a Ring,piston, manufactured by Sam Winer Motors, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-168-9945 has 2 manufacturer part numbers on file: 77263 (Sam Winer Motors, Inc.), 217687 (Cadillac Gage Textron Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 4330-01-222-9705, 5340-01-612-2773, 5340-01-647-9089. Verify interchangeability with system specifications before substitution.
Key specifications for 77263: End Item Identification: GENERAL MOTORS CORP.,LIGHT ARMORED VEHICLE MODEL LAV-25. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.