The Ring,piston, cataloged under National Stock Number 4310-01-009-8971, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4310-01-009-8971 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Cross-Sectional Shape Style | STRAIGHT FACE, BOTTOM RELIEF |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.2250 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 6.000 INCHES IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 65A366 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 65A366 | 3/9 Design control — primary reference Cooper Industries Industrial Machinery Div |
NSN 4310-01-009-8971 is a Ring,piston, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
Key specifications for 4310-01-009-8971: Overall Width: 0.1245 INCHES NOMINAL IN; Cross-Sectional Shape Style: STRAIGHT FACE, BOTTOM RELIEF; Joint Style: STEP JOINT; Radial Wall Thickness: 0.2250 INCHES NOMINAL IN. 6 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.