The Breather, cataloged under National Stock Number 4310-01-388-5548, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Raytheon Company. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-388-5548 |
| Primary Part Number | 4083-27004-001 |
| Item Name | Breather |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Outside Diameter | 2.590 INCHES MAXIMUM IN |
| Connection Type | THREADED |
| Thread Size and Series/type Designator | 3/4-14 NPTF |
| 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 |
|---|---|
| 4083-27004-001 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| 049910-10 | 5/9 Secondary reference U.S. Government activity |
| 4083-27004-001 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
| 049910-40 | 3/2 Design control — primary reference U.S. Government activity |
| 4083-27004 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
| 4083-27004 | 7/2 Vendor item drawing reference Raytheon Company |
NSN 4310-01-388-5548 is a Breather, manufactured by Raytheon Company, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-388-5548 has 1 manufacturer part number on file: 4083-27004-001 (Raytheon Company).
Key specifications for 4083-27004-001: Outside Diameter: 2.590 INCHES MAXIMUM IN; Connection Type: THREADED; Overall Length: 3.220 INCHES MAXIMUM IN; Special Features: HOUSING MATL:DELRIN;PLEATED,IMPREGNATED CELLULOSE;FILTER RATING:10 MICROMETERS;PIPE THREAD. 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.