The Breather, cataloged under National Stock Number 2520-00-692-5887, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Stewart-Warner Corporation. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2520-00-692-5887 |
| Primary Part Number | G304810 |
| Item Name | Breather |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Stewart-Warner Corporation |
| Status | ACTIVE |
| Outside Diameter | 0.531 INCHES MAXIMUM IN |
| Connection Type | THREADED |
| Body Material | STEEL |
| Thread Size and Series/type Designator | 1/8-27 NPT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7336219 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| G304810 PRIMARY | Stewart-Warner Corporation (USA) |
| 7764064 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 541KB14 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
| 541KB15 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
| 541KBA15 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
| 541KB13 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
| 541KBA13 | 5/9 Secondary reference Mack Trucks Inc Parts Opn |
NSN 2520-00-692-5887 is a Breather, manufactured by Stewart-Warner Corporation, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-692-5887 has 3 manufacturer part numbers on file: 7336219 (U S Army Tank Automotive Command Amsta-Im-Mm), G304810 (Stewart-Warner Corporation), 7764064 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for G304810: Overall Height: 1.000 INCHES MAXIMUM IN; Outside Diameter: 0.531 INCHES MAXIMUM IN; Connection Type: THREADED; Body Material: STEEL. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.