The Housing,antifriction Bearing,air, cataloged under National Stock Number 2840-00-997-7493, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components 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 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 | 2840-00-997-7493 |
| Primary Part Number | 541775 |
| Item Name | Housing,antifriction Bearing,air |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 541775 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 2840-00-997-7493 is a Housing,antifriction Bearing,air, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-997-7493 has 1 manufacturer part number on file: 541775 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5410-01-084-5237. Verify interchangeability with system specifications before substitution.
Key specifications for 541775: Special Features: MFG'D OF STEEL,AMS 6322; 0.572 - 0.586 IN. LG.,0.513 - 0.525 BODY LG.,2.284 - 2.285 IN. BODY OD,2.165 - 2.165 IN. BODY ID,0.060 - 0.060 IN. INTERNAL FLANGE THK,1.930 - 1.950 IN. INTERNAL FLANGE ID,0.453 - 0.455 IN. DISTANCE FROM INTERNAL FLANGE TO EXTERNAL FLANGE,3.535 - 3.555 IN. EXTERNAL FLANGE OD,0.059 - 0.061 IN. EXTERNAL FLANGE THK; ROCKWELL C26-32 HARDNESS,THREE 0.276 - 0.266 IN. DIA. HOLES EQUALLY SPACED ON EXTERNAL FLANGE ON 1.533 IN. CENTERLINE RADIUS IN; End Item Identification: AIRCRAFT JDET ENGINE,TF30. 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 2840-00-997-7493 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.