The Disk,discharge Valve, cataloged under National Stock Number 4310-00-421-2332, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-421-2332 |
| Item Name | Disk,discharge Valve |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SPECIAL CLEAN FOR OXYGEN SERVICE |
| 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 |
|---|---|
| 72021027803 | 3/1 Design control — primary reference Newport Scientific, Inc. |
| G4-65CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| G4-65 | 5/9 Secondary reference Newport Scientific, Inc. |
NSN 4310-00-421-2332 is a Disk,discharge Valve, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5930-01-289-4056, 5220-01-417-9617, 5120-01-641-9548. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-00-421-2332: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SPECIAL CLEAN FOR OXYGEN SERVICE. 1 specification is 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.