The Seat,valve, cataloged under National Stock Number 4810-01-326-8552, 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 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-326-8552 |
| Primary Part Number | 5820154 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.270 INCHES NOMINAL IN |
| Flange Diameter | 0.996 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Outside Diameter | 0.300 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.158 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Under Flange Height | 0.280 INCHES NOMINAL IN |
| Material | STEEL COMP 302 OVERALL |
| Seat Angle in Deg | 28.000 MINIMUM AND 30.000 MAXIMUM |
| Seating Surface Shape | ANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5820154 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4810-01-326-8552 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-326-8552 has 1 manufacturer part number on file: 5820154 (Naval Sea Systems Command).
Key specifications for 5820154: Flange Seat to Disk End Height: 0.270 INCHES NOMINAL IN; Flange Diameter: 0.996 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Outside Diameter: 0.300 INCHES NOMINAL IN. 12 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.
NSN 4810-01-326-8552 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.