The Spring Assembly,anti&icing Valve, cataloged under National Stock Number 4810-00-929-0749, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 specification, 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. 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 | 4810-00-929-0749 |
| Primary Part Number | 634518 |
| Item Name | Spring Assembly,anti&icing Valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | W/HOUSING AND SHAFT |
| 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 |
|---|---|
| 634518 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4810-00-929-0749 is a Spring Assembly,anti&icing Valve, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-929-0749 has 1 manufacturer part number on file: 634518 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-123-8277. Verify interchangeability with system specifications before substitution.
Key specifications for 634518: General Characteristics Item Description: W/HOUSING AND SHAFT; End Item Identification: 4810001718545 692406 VALVE ASSY,AIR REGULATOR. 1 specification is 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.