The Breather, cataloged under National Stock Number 2805-01-244-0125, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is L3 Communications Corporation, Emp Systems Dba L3 Communications Corporation, Emp Systems. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2805-01-244-0125 |
| Primary Part Number | AI874952-01 |
| Item Name | Breather |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | L3 Communications Corporation, Emp Systems Dba L3 Communications Corporation, Emp Systems |
| Status | ACTIVE |
| Outside Diameter | 0.562 INCHES NOMINAL IN |
| Connection Type | THREADED |
| Thread Size and Series/type Designator | 1/4-18 NPT |
| 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 |
|---|---|
| AI874952-01 PRIMARY | L3 Communications Corporation, Emp Systems Dba L3 Communications Corporation, Emp Systems (USA) |
| 9833K22 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| AI874952 | D/9 Drawing number reference only L3 Communications Corporation, Emp Systems Dba L3 Communications Corporation, Emp Systems |
NSN 2805-01-244-0125 is a Breather, manufactured by L3 Communications Corporation, Emp Systems Dba L3 Communications Corporation, Emp Systems, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-244-0125 has 2 manufacturer part numbers on file: AI874952-01 (L3 Communications Corporation, Emp Systems Dba L3 Communications Corporation, Emp Systems), 9833K22 (Mcmaster-Carr Supply Co).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-534-6590. Verify interchangeability with system specifications before substitution.
Key specifications for AI874952-01: Outside Diameter: 0.562 INCHES NOMINAL IN; Connection Type: THREADED; Overall Length: 0.640 INCHES NOMINAL IN; Special Features: THD EXT; CORROSION RESISTANT. 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.