The Seat,valve, cataloged under National Stock Number 4820-01-486-4816, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-486-4816 |
| Primary Part Number | 7094236-1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Seal Accommodation Type | GROOVED |
| Nominal Thread Size | 0.500 INCHES SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Seat Angle in Deg | 45.000 NOMINAL |
| Thread Series Designator | UNF SINGLE THREADED PORTION |
| Seating Surface Shape | ANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6931004 ITEM NO. 4 | Naval Sea Systems Command (USA) |
| 7094236-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6931004 | D/9 Drawing number reference only Naval Sea Systems Command |
| 7094236 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-486-4816 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-486-4816 has 2 manufacturer part numbers on file: 6931004 ITEM NO. 4 (Naval Sea Systems Command), 7094236-1 (Naval Sea Systems Command).
Key specifications for 7094236-1: Seal Accommodation Type: GROOVED; Nominal Thread Size: 0.500 INCHES SINGLE THREADED PORTION IN; Special Features: MATERIAL IS NYLATRON GS; THIS BALL SEAT GOES ON A PISTON ROD THAT FUNCTIONS IN A MANNER SIMILAR TO A VALVE; Thread Class: 3A SINGLE THREADED PORTION A. 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.