The Seat,valve, cataloged under National Stock Number 4810-01-142-4264, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 14 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 | 4810-01-142-4264 |
| Primary Part Number | 43249A |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.420 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Flange Diameter | 0.283 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| FSC Application Data | AIRCRAFT AUXILIARY POWER UNIT |
| Body Outside Diameter | 0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Thread Length | 0.150 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.126 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.164 INCHES SINGLE THREADED PORTION IN |
| Surface Treatment | PASSIVATE OVERALL |
| Under Flange Height | 0.333 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN |
| Thread Class | 3B SINGLE THREADED PORTION |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE THREADED PORTION |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 43249A PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
NSN 4810-01-142-4264 is a Seat,valve, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-142-4264 has 1 manufacturer part number on file: 43249A (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for 43249A: Flange Seat to Disk End Height: 0.420 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN; Flange Diameter: 0.283 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; FSC Application Data: AIRCRAFT AUXILIARY POWER UNIT; Body Outside Diameter: 0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN. 14 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 4810-01-142-4264 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.