The Bumper Bearing, cataloged under National Stock Number 2840-01-139-7158, 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 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2840-01-139-7158 |
| Item Name | Bumper Bearing |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| FSC Application Data | ROTOR ASSEMBLY,COMPRESSOR |
| General Characteristics Item Description | 0.342 IN. MIN 0.346 IN. MAX O/A LG,0.125 IN. MIN 0.130 IN. MAX W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 10158585 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 4061T67P02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-139-7158 is a Bumper Bearing, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-01-139-7158: FSC Application Data: ROTOR ASSEMBLY,COMPRESSOR; General Characteristics Item Description: 0.342 IN. MIN 0.346 IN. MAX O/A LG,0.125 IN. MIN 0.130 IN. MAX W IN; End Item Identification: AIRCRAFT MODEL A-18,F-18. 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 2840-01-139-7158 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.