The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-247-6473, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 2530-00-247-6473 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Mounting Facility Thread Class | 2B |
| Bleeding Feature Quantity | 1 |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Longest Vertical Distance Between Mounting Centers | 1.875 INCHES NOMINAL IN |
| Mounting Facility Thread Quantity Per Inch | 16 |
| Bore Type | STRAIGHT |
| Port Thread Class | 2B LOCATION NOT OTHERWISE SPECIFIED |
| Port Thread Quantity Per Inch | 20 LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Facility Thread Length | 0.437 INCHES NOMINAL IN |
| Port Thread Diameter | 0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Mounting Facility Thread Diameter | 0.313 INCHES NOMINAL IN |
| Port Location and Quantity | 1 CENTER SECTION |
| Bore Diameter | 1.375 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Mounting Facility Thread Direction | RIGHT-HAND |
| 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 |
|---|---|
| 32278 | 5/9 Secondary reference Kelsey-Hayes Co Wheel Drum and Brake Div |
| KH32278 | 3/9 Design control — primary reference Kelsey-Hayes Co Wheel Drum and Brake Div |
NSN 2530-00-247-6473 is a Cylinder Assembly,hydraulic Brak, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
6 possible matches (shared part number, not a government interchangeability claim): 4320-00-496-3652, 4130-01-242-1685, 5330-01-398-9533. Verify interchangeability with system specifications before substitution.
Key specifications for 2530-00-247-6473: Overall Height: 2.938 INCHES NOMINAL IN; Mounting Facility Thread Class: 2B; Bleeding Feature Quantity: 1; Design Characteristics: DOUBLE ACTING SINGLE CYLINDER. 16 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.