The Cover,seal,piston, cataloged under National Stock Number 4310-01-202-5689, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cover,seal,piston |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Parameter | Value |
|---|---|
| NSN | 4310-01-202-5689 |
| Item Name | Cover,seal,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| 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 |
| Reference | Meaning |
|---|---|
| C0V-1432 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| HL-21144 PIECE 82 | 5/9 Secondary reference U.S. Government activity |
| HL-21144 | D/9 Drawing number reference only U.S. Government activity |
| COV-1432 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| COV-1432 | 5/9 Secondary reference U.S. Government activity |
| COV-1432 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4310-01-202-5689 is a Cover,seal,piston, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
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.