The Breather, cataloged under National Stock Number 4310-00-271-9053, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 50 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-271-9053 |
| Item Name | Breather |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Status | ACTIVE |
| Filter Type | DRY |
| Outside Diameter | 3.812 INCHES MAXIMUM IN |
| Body Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 9495PC4 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 11532PC5 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 9181BPC4 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 10576PC5 | 5/2 Secondary reference U.S. Government activity |
| 11548PC5 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 10576PC5 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 10560PC5 | 5/2 Secondary reference U.S. Government activity |
| 9694PC4 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 10560PC5 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 8143 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 9495PC4 | 5/2 Secondary reference U.S. Government activity |
| 8143 | 5/2 Secondary reference U.S. Government activity |
| 10560PC5 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 9181BPC4 | 5/2 Secondary reference U.S. Government activity |
| 2203PC196 | 5/9 Secondary reference Cooper Industries Inc Industrial Machinery Div |
| 3504PC76 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 1220PC269 | 5/9 Secondary reference Cooper Industries Inc Industrial Machinery Div |
| 504PC358 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
| 1100PC140 | 5/9 Secondary reference Cooper Industries Inc Industrial Machinery Div |
| 901PC173 | 5/9 Secondary reference Cooper Industries Inc Industrial Machinery Div |
NSN 4310-00-271-9053 is a Breather, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
10 possible matches (shared part number, not a government interchangeability claim): 5315-00-292-4748, 2530-00-430-1862, 5820-00-496-9202. Verify interchangeability with system specifications before substitution.
Key specifications for 4310-00-271-9053: Overall Height: 3.938 INCHES MAXIMUM IN; Filter Type: DRY; Outside Diameter: 3.812 INCHES MAXIMUM IN; Body Material: STEEL. 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.