The Seat,valve, cataloged under National Stock Number 4810-00-460-2890, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-460-2890 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| FSC Application Data | BODY ASSEMBLY,VALVE,CATAPULT,ACFT LAUNCHING |
| Thread Length | 0.562 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Criticality Code Justification | AGAV |
| Material Document and Classification | MIL-S-869 CLASS D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 1.312 INCHES SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 12 SINGLE THREADED PORTION |
| Material | STEEL OVERALL |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Seating Surface Shape | FLAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 17-32283-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-00-460-2890 is a Seat,valve, classified under FSC 4810, Valves, Powered. Status: active.
Key specifications for 4810-00-460-2890: FSC Application Data: BODY ASSEMBLY,VALVE,CATAPULT,ACFT LAUNCHING; Thread Length: 0.562 INCHES NOMINAL SINGLE THREADED PORTION IN; Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL; Criticality Code Justification: AGAV. 11 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.