The Filter Element,intake Air Cleane, cataloged under National Stock Number 2940-01-632-3945, 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 Niantic Seal Inc Dba Atco. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-01-632-3945 |
| Primary Part Number | NSI10526-45 |
| Item Name | Filter Element,intake Air Cleane |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Niantic Seal Inc Dba Atco |
| Status | ACTIVE |
| Body Overall Length | 11.84 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR (INCL SQUARE) |
| Body Thickness | 0.63 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 |
|---|---|
| NSI10526-45 PRIMARY | Niantic Seal Inc Dba Atco (USA) |
| Reference | Meaning |
|---|---|
| 569-8217350-500(REV B1) | 3/1 Design control — primary reference Naval Sea Systems Command |
| H677-2205-500(REV B1) | 5/1 Secondary reference U.S. Government activity |
| 218082358 | 5/2 Secondary reference U.S. Government activity |
NSN 2940-01-632-3945 is a Filter Element,intake Air Cleane, manufactured by Niantic Seal Inc Dba Atco, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-632-3945 has 1 manufacturer part number on file: NSI10526-45 (Niantic Seal Inc Dba Atco).
Key specifications for NSI10526-45: Body Overall Length: 11.84 INCHES NOMINAL IN; Style Designator: RECTANGULAR (INCL SQUARE); Overall Width: 9.42 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: INTAKE FILTER. 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.