The Housing,anti-Icing Air Shut-Off, cataloged under National Stock Number 2995-00-894-5551, 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 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2995-00-894-5551 |
| Primary Part Number | 427667 |
| Item Name | Housing,anti-Icing Air Shut-Off |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | O/A LG 6.943 TO 6.963 IN.;MTG FLANGE THK 0.245 TO 0.255 IN.,4 FLANGE HOLES 0.339 TO 0.349 IN.;DISTANCE BETWEEHOLES ALONG LG AND W 2.376 IN. C TO C IN |
| Precious Material | SILVER |
| Precious Material and Location | MTG FLANGE AND FERRULE JOINTS BRAZING SILVER |
| 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 2995-00-894-5551 is a Housing,anti-Icing Air Shut-Off, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
NSN 2995-00-894-5551 has 2 manufacturer part numbers on file: 427667 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 427667 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 427667: General Characteristics Item Description: O/A LG 6.943 TO 6.963 IN.;MTG FLANGE THK 0.245 TO 0.255 IN.,4 FLANGE HOLES 0.339 TO 0.349 IN.;DISTANCE BETWEEHOLES ALONG LG AND W 2.376 IN. C TO C IN; Precious Material: SILVER; Precious Material and Location: MTG FLANGE AND FERRULE JOINTS BRAZING SILVER; End Item Identification: TF-33 ACFT ENGINE. 3 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 2995-00-894-5551 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.