The Seat,valve, cataloged under National Stock Number 4810-00-337-1089, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 50 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-337-1089 |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.313 INCHES NOMINAL IN |
| Body Outside Diameter | 0.750 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Material Document and Classification | MIL-S-866,CLASS TS8615 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Under Flange Height | 0.625 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 40120 | 5/9 Secondary reference U.S. Government activity |
| D15-648YPC618 | 5/2 Secondary reference U.S. Government activity |
| D15-739ZPC618 | 5/9 Secondary reference U.S. Government activity |
| CV9S5300-26PC618 | 5/9 Secondary reference U.S. Government activity |
| CV9S5300-025PC61 | 5/9 Secondary reference U.S. Government activity |
| D15-769BPC568 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-648PPC618 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-648PPC618 | 5/2 Secondary reference U.S. Government activity |
| CVL48S5300-47901 | 5/9 Secondary reference U.S. Government activity |
| CV41S5300-2PC618 | 5/9 Secondary reference U.S. Government activity |
| D15-648BPC618 | 5/9 Secondary reference U.S. Government activity |
| D15-769PPC568 | 5/2 Secondary reference U.S. Government activity |
| D15-6482PC618 | 5/2 Secondary reference U.S. Government activity |
| D15-739BPC618 | 5/9 Secondary reference U.S. Government activity |
| CV41S5300-16PC61 | 5/9 Secondary reference U.S. Government activity |
| D15-739PPC618 | 5/9 Secondary reference Westinghouse Electric Corp |
| D15-769VPC568 | 5/2 Secondary reference U.S. Government activity |
| D15-648PPC618 | 5/9 Secondary reference U.S. Government activity |
| D15-648AAPC618 | 5/2 Secondary reference U.S. Government activity |
| 40120 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-00-337-1089 is a Seat,valve, classified under FSC 4810, Valves, Powered. Status: active.
8 possible matches (shared part number, not a government interchangeability claim): 5330-00-527-7332, 5340-00-853-6212, 5999-00-909-6541. Verify interchangeability with system specifications before substitution.
Key specifications for 4810-00-337-1089: Flange Seat to Disk End Height: 0.313 INCHES NOMINAL IN; Body Outside Diameter: 0.750 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED; Material Document and Classification: MIL-S-866,CLASS TS8615 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.