PartsTable TECHNICAL DATA SHEET
NSN 2995-00-920-3598Government record, cited

Valve, Bleed Control2995-00-920-3598

NSN 2995-00-920-3598 · NIIN 009203598 · Part number 491731
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 2995 — Miscellaneous Engine Accessories, Aircraft · FSG 29 — Engine Accessories · CAGE 77445
Government record, cited
NSN 2995-00-920-3598 — this item is cataloged by the U.S. Government under National Stock Number 2995-00-920-3598. Manufacturer of record part number: 491731.
Also searched as  2995-00-920-3598 · 2995009203598 · NIIN 009203598 · 00-920-3598 · FSC 2995 Miscellaneous Engine Accessories, Aircraft · CAGE 77445 · 491731
Nearby stock numbers  ·
Features
  • Valve,bleed Control — FSC 2995
  • General Characteristics Item Description: CRES,2.040 IN. LG,0.356 TO 0.364 IN. OD,CLOSE IN
  • 3 manufacturer part numbers on file
  • Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Identification
  • NSN: 2995-00-920-3598
  • NIIN: 009203598
  • FSC: 2995 — Miscellaneous Engine Accessories, Aircraft
  • FSG: 29 — Engine Accessories
  • Primary part number: 491731
  • Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
General Description

The Valve,bleed Control, cataloged under National Stock Number 2995-00-920-3598, 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 3 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.

Technical Specifications
ParameterValue
NSN2995-00-920-3598
Primary Part Number491731
Item NameValve,bleed Control
FSC / FSG2995 / 29 — Miscellaneous Engine Accessories, Aircraft
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
General Characteristics Item DescriptionCRES,2.040 IN. LG,0.356 TO 0.364 IN. OD,CLOSE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5945-01-152-3960491731 POSSIBLE MATCH
ARMATURE,INDUCTION COIL
Possible match (shared part number)Dresser Industries Inc Waukesha Engine Div
Cross-Reference Index
Part NumberManufacturer
491731 Enjet Aero Bloomfield, Llc (USA)
491731 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
491731 Triumph Engine Control Systems Llc (USA)
Related Parts
5945-01-152-3960POSSIBLE MATCH
ARMATURE,INDUCTION COIL
491731

Frequently Asked Questions

What is NSN 2995-00-920-3598?

NSN 2995-00-920-3598 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.

What part numbers are listed for NSN 2995-00-920-3598?

NSN 2995-00-920-3598 has 3 manufacturer part numbers on file: 491731 (Enjet Aero Bloomfield, Llc), 491731 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 491731 (Triumph Engine Control Systems Llc).

What NSN replaces 2995-00-920-3598?

1 possible match (shared part number, not a government interchangeability claim): 5945-01-152-3960. Verify interchangeability with system specifications before substitution.

What are the specifications of 491731?

Key specifications for 491731: General Characteristics Item Description: CRES,2.040 IN. LG,0.356 TO 0.364 IN. OD,CLOSE IN; End Item Identification: 2995001398687 743548 CONTROL ASSY,PRESSURE RATIO BLEED,ACFT ENGINE. 1 specification is documented in the U.S. Government catalog.

Is NSN 2995-00-920-3598 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 2995-00-920-3598?

NSN 2995-00-920-3598 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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