The Housing,antifriction Bearing,air, cataloged under National Stock Number 2840-00-920-2455, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-920-2455 |
| Item Name | Housing,antifriction Bearing,air |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 6272 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6274 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 8.507 INCHES MINIMUM AND 8.508 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 6809074P020 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 6809074P020 | 3/1 Design control — primary reference Rolls-Royce Corporation |
NSN 2840-00-920-2455 is a Housing,antifriction Bearing,air, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-00-920-2455: Criticality Code Justification: AGAV; Material Document and Classification: AMS 6272 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6274 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 8.507 INCHES MINIMUM AND 8.508 INCHES MAXIMUM IN; End Item Identification: T56 ACFT ENGINE. 4 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.
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.