The Ring,piston, cataloged under National Stock Number 2810-00-075-8745, is classified within Federal Supply Class 2810 (Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components) of the Engines, Turbines, and Components group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2810-00-075-8745 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Status | ACTIVE |
| FSC Application Data | VALVE,BUTTERFLY,HYDRAULIC,ACFT |
| Surface Treatment Document and Classification | MIL-S-500 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Cross-Sectional Shape Style | CONVEX FACE |
| Radial Wall Thickness | 0.1080 INCHES MINIMUM AND 0.1110 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Surface Treatment | PASSIVATE OVERALL |
| Standard Bore Diameter | 3.937 INCHES IN |
| 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 |
|---|---|
| 32-11404-312 | 5/9 Secondary reference The Boeing Company Div Defense |
| 581116-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2810-00-075-8745 is a Ring,piston, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
Key specifications for 2810-00-075-8745: FSC Application Data: VALVE,BUTTERFLY,HYDRAULIC,ACFT; Surface Treatment Document and Classification: MIL-S-500 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Width: 0.0490 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM IN; Cross-Sectional Shape Style: CONVEX FACE. 7 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 2810-00-075-8745 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.