The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-919-4907, 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 Kalmar AC Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2530-00-919-4907 |
| Primary Part Number | 74815459 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Actuation Method | DIRECT |
| Mounting Facility Diameter | 0.438 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Provisions | 3.375 INCHES NOMINAL IN |
| Seat Angle in Deg | 42.0 LOCATION NOT OTHERWISE SPECIFIED |
| Port Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Provision Arrangement Style | TWO HOLE |
| Port Thread Class | 2B LOCATION NOT OTHERWISE SPECIFIED |
| Features Provided | RUBBER BOOT |
| Port Thread Quantity Per Inch | 20 LOCATION NOT OTHERWISE SPECIFIED |
| Port Thread Diameter | 0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Port Location and Quantity | 1 CENTER SECTION AND 1 CYLINDER HEAD END |
| Port Style | INVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED |
| Straight Bore Inside Diameter | 1.000 INCHES NOMINAL IN |
| Material | IRON CAST BODY |
| Mounting Type and Location | FLANGE CYLINDER HEAD END |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 74815459 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 4791102 | 5/9 Secondary reference Kalmar AC Inc |
| 48154595 | 5/9 Secondary reference U.S. Government activity |
NSN 2530-00-919-4907 is a Cylinder Assembly,hydraulic Brak, manufactured by Kalmar AC Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-919-4907 has 1 manufacturer part number on file: 74815459 (Kalmar AC Inc).
Key specifications for 74815459: Actuation Method: DIRECT; Mounting Facility Diameter: 0.438 INCHES NOMINAL IN; Overall Height: 5.080 INCHES NOMINAL IN; Center to Center Distance Between Mounting Provisions: 3.375 INCHES NOMINAL IN. 17 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.