The Piston,compressor, cataloged under National Stock Number 4310-00-649-8457, 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6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4310-00-649-8457 |
| Item Name | Piston,compressor |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Ring Groove Width | 0.078 INCHES NOMINAL IN |
| Diameter | 4.062 INCHES NOMINAL IN |
| Oil Groove | INCLUDED |
| Ring Groove Quantity | 4 |
| Bushing Hole Diameter | 0.625 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| A238020 | 5/9 Secondary reference Joy Global Underground Mining Llc |
| A238020 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4310-00-649-8457 is a Piston,compressor, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
Key specifications for 4310-00-649-8457: Overall Height: 5.250 INCHES NOMINAL IN; Ring Groove Width: 0.078 INCHES NOMINAL IN; Diameter: 4.062 INCHES NOMINAL IN; Oil Groove: INCLUDED. 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.