The Air Cleaner,intake, cataloged under National Stock Number 2940-01-177-3585, 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 Farr Co. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2940-01-177-3585 |
| Primary Part Number | 62891-1 |
| Item Name | Air Cleaner,intake |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Farr Co |
| Status | ACTIVE |
| Integral Clamp | INCLUDED |
| Filter Type | DRY |
| Element Replaceability | REPLACEABLE |
| Backfire Valve | NOT INCLUDED |
| Remote Location Inlet Adapter | NOT INCLUDED |
| Outlet Sleeve Type | PROTRUDING |
| Criticality Code Justification | FEAT |
| Quantity | 1 |
| Outside Diameter | 9.750 INCHES NOMINAL IN |
| Sleeve Outside Diameter | 6.000 INCHES NOMINAL IN |
| Outlet Type | SLEEVE |
| Sleeve Connection Quantity | 2 |
| Pressure Relief Valve | NOT INCLUDED |
| Inlet Type | SLEEVE |
| Material | STEEL CORROSION RESISTING |
| Air Cleaner Type | THROW-AWAY |
| Sleeve Location | TOP OF CLEANER TO THE LEFT OF CENTER |
| Submersibility | NONSUBMERSIBLE |
| Outlet Location | RIGHT END OF CLEANER |
| Mounting Outside Diameter | 6.000 INCHES NOMINAL IN |
| Sleeve Length | 1.910 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 62891-1 PRIMARY | Farr Co (USA) |
| AH8501 | Cummins Filtration Inc Dba Fleetguard Div Cummins Inc (USA) |
| Reference | Meaning |
|---|---|
| C-62891 | D/9 Drawing number reference only Farr Co |
| 76612 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AH0110400 | 5/9 Secondary reference Cummins Filtration Inc Dba Fleetguard Div Cummins Inc |
| AH1104 | 5/9 Secondary reference Cummins Filtration Inc Dba Fleetguard Div Cummins Inc |
NSN 2940-01-177-3585 is a Air Cleaner,intake, manufactured by Farr Co, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-177-3585 has 2 manufacturer part numbers on file: 62891-1 (Farr Co), AH8501 (Cummins Filtration Inc Dba Fleetguard Div Cummins Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4320-01-463-5931, 4320-01-475-4066, 5940-01-590-0681. Verify interchangeability with system specifications before substitution.
Key specifications for 62891-1: Overall Height: 25.310 INCHES NOMINAL IN; Integral Clamp: INCLUDED; Filter Type: DRY; Element Replaceability: REPLACEABLE. 21 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.