The Valve,bleed Control, cataloged under National Stock Number 2995-00-920-3597, is classified within Federal Supply Class 2995 (Miscellaneous Engine Accessories, Aircraft) of the Engine Accessories 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 4 manufacturer part numbers 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 | 2995-00-920-3597 |
| Primary Part Number | 491730 |
| Item Name | Valve,bleed Control |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,2.534 IN. LG,0.398 TO 0.402 IN. OD,OPEN IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2995-00-920-3597 is a Valve,bleed Control, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
NSN 2995-00-920-3597 has 4 manufacturer part numbers on file: 491730 (Lewis Machine, Llc), 491730 (Enjet Aero Bloomfield, Llc), 491730 (Beta Engineering, Inc. Dba Beta Engineering Inc), 491730 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-148-0940. Verify interchangeability with system specifications before substitution.
Key specifications for 491730: General Characteristics Item Description: CRES,2.534 IN. LG,0.398 TO 0.402 IN. OD,OPEN IN; End Item Identification: 2995001398687 743548 CONTROL ASSY,PRESSURE RATIO BLEED,ACFT ENGINE. 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.
NSN 2995-00-920-3597 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.