The Spring,expander,piston Ring, cataloged under National Stock Number 2805-00-074-1295, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Proponent, Inc. Dba Proponent. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Spring,expander,piston Ring |
| FSC / FSG | 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components (FSG 28) |
| Manufacturers | Proponent, Inc. Dba Proponent (CAGE 59789) |
| Parameter | Value |
|---|---|
| NSN | 2805-00-074-1295 |
| Primary Part Number | S4929713-42 |
| Item Name | Spring,expander,piston Ring |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Proponent, Inc. Dba Proponent |
| 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 |
|---|---|
| S4929713-42 PRIMARY | Proponent, Inc. Dba Proponent (USA) |
| Reference | Meaning |
|---|---|
| 4445080 | D/9 Drawing number reference only U.S. Government activity |
| S4445080-42 | 5/9 Secondary reference U.S. Government activity |
| 4929713-42 | 5/2 Secondary reference U.S. Government activity |
NSN 2805-00-074-1295 is a Spring,expander,piston Ring, manufactured by Proponent, Inc. Dba Proponent, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-074-1295 has 1 manufacturer part number on file: S4929713-42 (Proponent, Inc. Dba Proponent).
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.