The Oil Filter,cooler B, cataloged under National Stock Number 2940-01-122-0252, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-122-0252 |
| Primary Part Number | 23005639 |
| Item Name | Oil Filter,cooler B |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | OIL FILTER,COOLER BYPASS ASSEMBLY. COMPONENT OF LUBRICATION SYSTEM,150 KW GENERATOR SET TM5-6115-598-24P |
| 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 |
|---|---|
| 23005639 | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 23005639 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 13226E9711 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2940-01-122-0252 is a Oil Filter,cooler B, manufactured by Rolls-Royce Corporation, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-122-0252 has 1 manufacturer part number on file: 23005639 (Rolls-Royce Corporation).
Key specifications for 23005639: General Characteristics Item Description: OIL FILTER,COOLER BYPASS ASSEMBLY. COMPONENT OF LUBRICATION SYSTEM,150 KW GENERATOR SET TM5-6115-598-24P; End Item Identification: 6115011131093. 1 specification is 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 2940-01-122-0252 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.