The Seat,valve, cataloged under National Stock Number 4810-01-458-0409, is classified within Federal Supply Class 4810 (Valves, Powered) 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4810-01-458-0409 |
| Primary Part Number | 6983491-042-70 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Outside Diameter | 2.250 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 1.500 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Seat Angle in Deg | 45.000 NOMINAL |
| 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 |
|---|---|
| 803-6983491 PC 70 | Naval Sea Systems Command (USA) |
| 6983491-042-70 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6983491 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6983491-70 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4810-01-458-0409 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-458-0409 has 2 manufacturer part numbers on file: 803-6983491 PC 70 (Naval Sea Systems Command), 6983491-042-70 (Naval Sea Systems Command).
Key specifications for 6983491-042-70: Overall Height: 0.375 INCHES NOMINAL IN; Body Outside Diameter: 2.250 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 1.500 INCHES NOMINAL IN. 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.