The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-255-5142, 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 Komatsu America Corp.. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-255-5142 |
| Primary Part Number | 298745C92 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Bleeding Feature Quantity | 1 |
| Seat Angle in Deg | 42.0 LOCATION NOT OTHERWISE SPECIFIED |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNS LOCATION NOT OTHERWISE SPECIFIED |
| Body Outside Diameter | 1.750 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Port Thread Class | 2B LOCATION NOT OTHERWISE SPECIFIED |
| Features Provided | BLEEDER VALVES |
| Port Thread Quantity Per Inch | 24 LOCATION NOT OTHERWISE SPECIFIED |
| Port Thread Diameter | 0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Port Location and Quantity | 1 CYLINDER HEAD END |
| Port Style | INVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED |
| Bore Diameter | 0.470 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Mounting Type and Location | BOSS PISTON ROD END |
| 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 |
|---|---|
| 298745C92 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 298745C92 | 3/2 Design control — primary reference U.S. Government activity |
| A3761Q355 | 5/9 Secondary reference U.S. Government activity |
NSN 2530-00-255-5142 is a Cylinder Assembly,hydraulic Brak, manufactured by Komatsu America Corp., classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-255-5142 has 1 manufacturer part number on file: 298745C92 (Komatsu America Corp.).
Key specifications for 298745C92: Overall Height: 2.356 INCHES NOMINAL IN; Bleeding Feature Quantity: 1; Seat Angle in Deg: 42.0 LOCATION NOT OTHERWISE SPECIFIED; Design Characteristics: SINGLE ACTING SINGLE CYLINDER. 15 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.