The Master Cylinder Power Unit, cataloged under National Stock Number 2530-01-331-6173, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2530-01-331-6173 |
| Item Name | Master Cylinder Power Unit |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2772230 AND 2772371 | 3/9 Design control — primary reference Allied Automotive Allied Aftermarket Div |
| 76319 | 5/9 Secondary reference Volvo Motor Graders Ltd |
| 49337 | 5/9 Secondary reference Volvo Motor Graders Ltd |
| 2770496 | 5/9 Secondary reference Allied Automotive Allied Aftermarket Div |
| 2232352 AND 2770469 | 5/9 Secondary reference Allied Automotive Allied Aftermarket Div |
NSN 2530-01-331-6173 is a Master Cylinder Power Unit, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1680-01-391-4736, 4820-01-664-8327. Verify interchangeability with system specifications before substitution.
Key specifications for 2530-01-331-6173: Special Features: PUMP AND MOTOR ACTUATED; INCLUDES MASTER CY AND BRAKE BOOSTER; APPL DRUM BRAKES; End Item Identification: GRADER; CHAMPION ROAD MACHINERY,MODELS 710-780A A. 0 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.