The Air Cleaner,intake, cataloged under National Stock Number 2940-01-103-6368, 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 Rix Industries. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2940-01-103-6368 |
| Primary Part Number | A77-623 |
| Item Name | Air Cleaner,intake |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Filter Type | DRY |
| Element Replaceability | REPLACEABLE |
| Element Type | PERFORATED |
| Backfire Valve | NOT INCLUDED |
| Remote Location Inlet Adapter | NOT INCLUDED |
| Quantity | 1 |
| Mounting Provision Thread Size | 1/2-14 |
| Outside Diameter | 2.438 INCHES NOMINAL IN |
| Outlet Type | THREADED |
| Thread Location | EXTERNAL |
| Thread Direction | RIGHT-HAND |
| Mounting Provision Thread Series Designator | NPT |
| Pressure Relief Valve | NOT INCLUDED |
| Inlet Type | OPEN |
| Material | STEEL |
| Air Cleaner Type | PERMANENT |
| Submersibility | NONSUBMERSIBLE |
| Outlet Location | BASE OF CLEANER |
| 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 |
|---|---|
| A77-623 PRIMARY | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| AI-104-2-005 | 5/9 Secondary reference Dollinger Corp |
| A77-613 | 5/9 Secondary reference Rix Industries |
NSN 2940-01-103-6368 is a Air Cleaner,intake, manufactured by Rix Industries, classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-01-103-6368 has 1 manufacturer part number on file: A77-623 (Rix Industries).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-281-9290. Verify interchangeability with system specifications before substitution.
Key specifications for A77-623: Overall Height: 3.125 INCHES NOMINAL IN; Filter Type: DRY; Element Replaceability: REPLACEABLE; Element Type: PERFORATED. 18 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.