The Air Cleaner,intake, cataloged under National Stock Number 2940-01-677-7473, 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 Mcmaster-Carr Supply Co. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-677-7473 |
| Primary Part Number | 4414K33 |
| Item Name | Air Cleaner,intake |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Filter Type | DRY |
| Backfire Valve | NOT INCLUDED |
| Remote Location Inlet Adapter | NOT INCLUDED |
| Inlet Adapter Thread Series Designator | NPT |
| Outlet Type | THREADED |
| Thread Location | EXTERNAL |
| Thread Direction | RIGHT-HAND |
| Securing Device Type | THREAD CONNECTION |
| Mounting Provision Thread Series Designator | NPTF |
| Pressure Relief Valve | NOT INCLUDED |
| Extended Tube | NOT INCLUDED |
| Width | 0.75 INCHES NOMINAL IN |
| Inlet Adapter Thread Direction | RIGHT-HAND |
| Material | ALUMINUM |
| Submersibility | SUBMERSIBLE |
| Outlet Location | END |
| 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 |
|---|---|
| 4414K33 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| AL4003810 | 3/9 Design control — primary reference General Dynamics Ordnance and Tactical Systems, Inc. |
| AL4003810 | 5/9 Secondary reference Flyer Defense, Llc |
NSN 2940-01-677-7473 is a Air Cleaner,intake, manufactured by Mcmaster-Carr Supply Co, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-677-7473 has 1 manufacturer part number on file: 4414K33 (Mcmaster-Carr Supply Co).
Key specifications for 4414K33: Filter Type: DRY; Backfire Valve: NOT INCLUDED; Remote Location Inlet Adapter: NOT INCLUDED; Overall Length: 2.375 INCHES NOMINAL IN. 16 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.