The Breather, cataloged under National Stock Number 2805-00-871-9487, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Cummins Power Generation Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-871-9487 |
| Primary Part Number | 123-0787 |
| Item Name | Breather |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Cummins Power Generation Inc. |
| Status | ACTIVE |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Body Material | RUBBER |
| 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 |
|---|---|
| 123-0787 PRIMARY | Cummins Power Generation Inc. (USA) |
| Reference | Meaning |
|---|---|
| 123A787 | 5/9 Secondary reference Cummins Power Generation Inc. |
| 123-787 | 5/9 Secondary reference Cummins Power Generation Inc. |
NSN 2805-00-871-9487 is a Breather, manufactured by Cummins Power Generation Inc., classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-871-9487 has 1 manufacturer part number on file: 123-0787 (Cummins Power Generation Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6680-01-331-5718, 5130-01-603-2578. Verify interchangeability with system specifications before substitution.
Key specifications for 123-0787: Overall Height: 1.875 INCHES NOMINAL IN; Outside Diameter: 2.000 INCHES NOMINAL IN; Body Material: RUBBER; Special Features: SYNTHETIC; W/NYLON TUBE PROTRUSION; ID 1.500 IN.; TUBE LG 0.656 IN.; TUBE DIA 0.500 IN. IN. 2 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.