The Seat,valve, cataloged under National Stock Number 4820-01-467-5501, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-467-5501 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-961-CL410 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| S-1077 PC 61 | D/9 Drawing number reference only U.S. Government activity |
| NL-1018-1 | 5/9 Secondary reference U.S. Government activity |
| NL1018-1 | 3/9 Design control — primary reference Dresser-Rand Company |
| NL1018-1 | 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 |
| NL-1018 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-467-5501 is a Seat,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-467-5501: Material Document and Classification: MIL-S-961-CL410 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Special Features: NHA VALVES ASTNX; End Item Identification: NIMITZ CLASS CVN; Material: STEEL CORROSION RESISTING OVERALL. 2 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.