The Breather, cataloged under National Stock Number 2520-00-006-9573, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-006-9573 |
| Primary Part Number | 2422535 |
| Item Name | Breather |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Outside Diameter | 2.406 INCHES MAXIMUM IN |
| Connection Type | THREADED |
| Thread Size and Series/type Designator | 3/4-14 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 |
|---|---|
| 2422535 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 13829-98 PRIMARY | Arvinmeritor Inc (USA) |
| A13829 | Arvinmeritor Inc (USA) |
| 719807C1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 637238C1 | 5/9 Secondary reference Komatsu American Intl Co |
| 637238C1 | 5/9 Secondary reference U.S. Government activity |
| 719807C1 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 2520-00-006-9573 is a Breather, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-006-9573 has 4 manufacturer part numbers on file: 2422535 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 13829-98 (Arvinmeritor Inc), A13829 (Arvinmeritor Inc), 719807C1 (Komatsu America Corp.).
Key specifications for 2422535: Outside Diameter: 2.406 INCHES MAXIMUM IN; Connection Type: THREADED; Overall Length: 2.603 INCHES MAXIMUM IN; Special Features: 1.125 WRENCH FLATS. 3 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.