The Filter Element,intake Air Cleane, cataloged under National Stock Number 2940-01-661-7933, 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 Us Army Aviation and Missile Command. Government technical data includes 3 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-661-7933 |
| Primary Part Number | 13502877 |
| Item Name | Filter Element,intake Air Cleane |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Body Diameter | 5.00 INCHES NOMINAL IN |
| Body Overall Length | 2.60 INCHES NOMINAL IN |
| Mounting Flange Diameter | 2.10 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 | X |
| Part Number | Manufacturer |
|---|---|
| 13502877 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 21-1320000 | Maradyne Corporation (USA) |
NSN 2940-01-661-7933 is a Filter Element,intake Air Cleane, manufactured by Us Army Aviation and Missile Command, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-661-7933 has 2 manufacturer part numbers on file: 13502877 (Us Army Aviation and Missile Command), 21-1320000 (Maradyne Corporation).
1 possible match (shared part number, not a government interchangeability claim): 2940-01-685-3350. Verify interchangeability with system specifications before substitution.
Key specifications for 13502877: Body Diameter: 5.00 INCHES NOMINAL IN; Body Overall Length: 2.60 INCHES NOMINAL IN; Overall Width: 5.00 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PRE-CLEANER. 3 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.