The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-01-100-3297, 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 Harley Davidson Motor Co Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-100-3297 |
| Primary Part Number | 42415-79 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Harley Davidson Motor Co Inc |
| Status | ACTIVE |
| Actuation Method | DIRECT |
| Mounting Facility Diameter | 0.335 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Provisions | 2.270 INCHES NOMINAL IN |
| Compressed Length | 4.056 INCHES NOMINAL IN |
| Port Thread Series Designator | NPT LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Provision Arrangement Style | TWO HOLE |
| Port Location and Quantity | 1 CYLINDER HEAD END |
| Port Nominal Pipe Thread Size | 0.125 INCHES IN |
| Port Style | GASKET SEAL LOCATION NOT OTHERWISE SPECIFIED |
| Straight Bore Inside Diameter | 0.815 INCHES NOMINAL IN |
| Material | ZINC ALLOY BODY |
| Reservoir Type | INTEGRAL |
| Mounting Provision | UNTHREADED MOUNTING HOLES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 2530-01-100-3297 is a Cylinder Assembly,hydraulic Brak, manufactured by Harley Davidson Motor Co Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-100-3297 has 2 manufacturer part numbers on file: 42415-79 (Harley Davidson Motor Co Inc), 42415-79A (Harley Davidson Motor Co Inc).
Key specifications for 42415-79: Actuation Method: DIRECT; Mounting Facility Diameter: 0.335 INCHES NOMINAL IN; Overall Height: 2.900 INCHES NOMINAL IN; Center to Center Distance Between Mounting Provisions: 2.270 INCHES NOMINAL IN. 13 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.