The Housing,pressure Switch, cataloged under National Stock Number 2995-00-974-2883, is classified within Federal Supply Class 2995 (Miscellaneous Engine Accessories, Aircraft) of the Engine Accessories group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2995-00-974-2883 |
| Primary Part Number | 661729-1 |
| Item Name | Housing,pressure Switch |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| FSC Application Data | REGULATOR,DIFFERENTIAL PRESSURE,ACFT ENGINE PNEUMATIC ACCESSORY |
| General Characteristics Item Description | ALUMINUM ALLOY,ANODIZED |
| 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 |
|---|---|
| 661729-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 661729-1 | 5/9 Secondary reference U.S. Government activity |
NSN 2995-00-974-2883 is a Housing,pressure Switch, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
NSN 2995-00-974-2883 has 1 manufacturer part number on file: 661729-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-438-9767. Verify interchangeability with system specifications before substitution.
Key specifications for 661729-1: FSC Application Data: REGULATOR,DIFFERENTIAL PRESSURE,ACFT ENGINE PNEUMATIC ACCESSORY; General Characteristics Item Description: ALUMINUM ALLOY,ANODIZED; End Item Identification: 2995008977308 392122-1-1 REGULATOR. 2 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 2995-00-974-2883 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.