The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-679-6069, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. The manufacturer of record is Trw Inc Replacement Parts Div. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 2530-00-679-6069 |
| Primary Part Number | MC22977 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Trw Inc Replacement Parts Div |
| Status | ACTIVE |
| Straight Bore Inside Diameter | 1.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| MC22977 | Trw Inc Replacement Parts Div (USA) |
| F22977 | Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA) |
| 5473011 | General Motors Llc Dba General Motors Llc (USA) |
| M22977 | Airtex Products Div of Uis Inc (USA) |
| Reference | Meaning |
|---|---|
| MC22977 | 5/9 Secondary reference C E Niehoff & Co |
| B702140B | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 22977 | 5/9 Secondary reference Echlin Inc |
| 5473011 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
| 174-131 | 5/9 Secondary reference Delco Moraine Div of General Motors Corp |
| C1TZ2140C | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| C1TZ2140C | 3/9 Design control — primary reference Ford Motor Company |
| 1129 | 5/9 Secondary reference Bendix Corp the |
| E22977 | 5/9 Secondary reference U.S. Government activity |
NSN 2530-00-679-6069 is a Cylinder Assembly,hydraulic Brak, manufactured by Trw Inc Replacement Parts Div, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-679-6069 has 4 manufacturer part numbers on file: MC22977 (Trw Inc Replacement Parts Div), F22977 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), 5473011 (General Motors Llc Dba General Motors Llc), M22977 (Airtex Products Div of Uis Inc).
5 possible matches (shared part number, not a government interchangeability claim): 5910-00-723-5157, 4710-00-968-8334, 7310-01-529-5039. Verify interchangeability with system specifications before substitution.
Key specifications for MC22977: Straight Bore Inside Diameter: 1.500 INCHES NOMINAL IN. 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.
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.