The Seat,valve, cataloged under National Stock Number 4810-01-467-0775, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-467-0775 |
| Primary Part Number | 253875 PC 7 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.563 INCHES NOMINAL IN |
| Flange Diameter | 4.812 INCHES NOMINAL IN |
| Body Outside Diameter | 4.687 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | QQ-N-288 COMP A FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Body Inside Diameter | 3.937 INCHES NOMINAL IN |
| Under Flange Height | 0.125 INCHES NOMINAL IN |
| Material | NICKEL ALLOY SEAT |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 253875 PC 7 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 253875 PC 7 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 253875 PC 7 | C/1 Advisory reference — outside the item-of-supply concept Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| 253875 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4810-01-467-0775 is a Seat,valve, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-467-0775 has 2 manufacturer part numbers on file: 253875 PC 7 (Huntington Ingalls Inc Div Newport News Shipbuilding), 253875 PC 7 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-729-4937. Verify interchangeability with system specifications before substitution.
Key specifications for 253875 PC 7: Flange Seat to Disk End Height: 0.563 INCHES NOMINAL IN; Flange Diameter: 4.812 INCHES NOMINAL IN; Body Outside Diameter: 4.687 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED. 9 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.