The Air Cleaner,intake, cataloged under National Stock Number 2940-00-377-5050, 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 Falls Filtration Technologies, Inc.. Government technical data includes 18 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-00-377-5050 |
| Primary Part Number | FN80S |
| Item Name | Air Cleaner,intake |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Falls Filtration Technologies, Inc. |
| Status | ACTIVE |
| Integral Clamp | NOT INCLUDED |
| Filter Type | OIL BATH |
| Element Replaceability | REPLACEABLE |
| Element Type | SCREEN |
| Backfire Valve | NOT INCLUDED |
| Remote Location Inlet Adapter | NOT INCLUDED |
| Outlet Sleeve Type | INTERNAL |
| Quantity | 1 |
| Outside Diameter | 6.000 INCHES NOMINAL IN |
| Outlet Type | SLEEVE |
| Oil Capacity | 7.0 OUNCES OZ |
| Pressure Relief Valve | NOT INCLUDED |
| Inlet Type | OPEN |
| Material | STEEL |
| Air Cleaner Type | PERMANENT |
| Submersibility | NONSUBMERSIBLE |
| Mounting Inside Diameter | 2.062 INCHES NOMINAL IN |
| Outlet Location | BOTTOM OF CLEANER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FN80S PRIMARY | Falls Filtration Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 28590 | 5/9 Secondary reference Komatsu America Corporation |
NSN 2940-00-377-5050 is a Air Cleaner,intake, manufactured by Falls Filtration Technologies, Inc., classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-00-377-5050 has 1 manufacturer part number on file: FN80S (Falls Filtration Technologies, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5935-00-644-6599, 6680-01-008-6326, 5360-01-136-5469. Verify interchangeability with system specifications before substitution.
Key specifications for FN80S: Overall Height: 4.125 INCHES NOMINAL IN; Integral Clamp: NOT INCLUDED; Filter Type: OIL BATH; Element Replaceability: REPLACEABLE. 18 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.