The Breather, cataloged under National Stock Number 2520-00-623-6592, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-623-6592 |
| Item Name | Breather |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Status | ACTIVE |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1554282 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 1554282 | 3/9 Design control — primary reference General Motors Llc Dba General Motors |
| 1554282 | 5/9 Secondary reference General Motors Corp |
NSN 2520-00-623-6592 is a Breather, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
Key specifications for 2520-00-623-6592: Outside Diameter: 4.500 INCHES NOMINAL IN; Overall Length: 4.310 INCHES NOMINAL IN; Special Features: 2ND END 3.500 IN.NOM OD;FILTER ELEMENT:13.25 TO 17.25 GRAMS OF ALUMINUM WIRE G. 1 specification is 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.
NSN 2520-00-623-6592 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.