The Duct Assembly,air Cleaner, cataloged under National Stock Number 2940-00-421-1602, 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 U S Army Tank Automotive Command Amsta-Im-Mm. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2940-00-421-1602 |
| Primary Part Number | 10903601 |
| Item Name | Duct Assembly,air Cleaner |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM; ONE END PLAIN FLANGE,6.020 IN. ID,7.218 IN OD. 0.875 IN. THK; OTHER END PLAIN FLANGE,6.032 IN. ID,8.750 IN. OD,0.250 IN. THK,6 UNTHD MOUNTING HOLES 0.438 IN. DIA EQUALLY SPACED ON 7.750 IN. BOLT CIRCLE DIA,13.488 IN. WORKING LENGTH 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 |
|---|---|
| 10903601 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2940004211602 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 2940004211602 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 2940-00-421-1602 is a Duct Assembly,air Cleaner, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-00-421-1602 has 1 manufacturer part number on file: 10903601 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10903601: General Characteristics Item Description: ALUMINUM; ONE END PLAIN FLANGE,6.020 IN. ID,7.218 IN OD. 0.875 IN. THK; OTHER END PLAIN FLANGE,6.032 IN. ID,8.750 IN. OD,0.250 IN. THK,6 UNTHD MOUNTING HOLES 0.438 IN. DIA EQUALLY SPACED ON 7.750 IN. BOLT CIRCLE DIA,13.488 IN. WORKING LENGTH IN; End Item Identification: 2350004408810. 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.
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.