The Valve,butterfly, cataloged under National Stock Number 4810-01-161-0476, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-161-0476 |
| Primary Part Number | 530981 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 530981 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 804337 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 4810-01-161-0476 is a Valve,butterfly, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-161-0476 has 1 manufacturer part number on file: 530981 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 530981: Special Features: CLOSED AIR VALVE LEAKAGE 3.5 LB PER MIN. MAX, UPSTREAM PRESSURE 50 PSIG, DOWNSTREAM PRESS ATMOSPHERIC, AIR INLET TEMP 70 DEG FEH, OPER TEMP 70 DEG TO 400 DEG FEH; MANUFACTURERS SUGGESTED NAME IS VALVE ASSY, BLEED LBS; End Item Identification: U/O TF33-PW-102 ENG; E/I KC135 ACFT. 0 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 4810-01-161-0476 has DEMIL Code Q. 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.