The Ring,piston, cataloged under National Stock Number 2805-00-293-4574, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-293-4574 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| FSC Application Data | SHOCK STRUT,NOSE LANDING GEAR,ACFT |
| Material Document and Classification | QQ-C-390 ALLOY FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | DOUBLE INSIDE BEVEL, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1750 INCHES MINIMUM AND 0.1850 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 5.463 INCHES IN |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1284551-101 | 5/9 Secondary reference U.S. Government activity |
| 1284551-101 | 3/9 Design control — primary reference Lockheed Martin Services, Llc |
NSN 2805-00-293-4574 is a Ring,piston, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-293-4574: FSC Application Data: SHOCK STRUT,NOSE LANDING GEAR,ACFT; Overall Width: 0.1650 INCHES MINIMUM AND 0.1750 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-390 ALLOY FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: DOUBLE INSIDE BEVEL, STRAIGHT FACE. 8 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.
NSN 2805-00-293-4574 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.