The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-01-019-4843, 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 Control Flow, Inc. Dba Control Flow Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-019-4843 |
| Primary Part Number | B305744 |
| Item Name | Cylinder Assembly,hydraulic Brak |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Control Flow, Inc. Dba Control Flow Inc |
| Status | ACTIVE |
| Actuation Method | DIRECT |
| Mounting Facility Diameter | 0.406 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 | UNS LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Provision Arrangement Style | TWO HOLE |
| Port Thread Class | 2B LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
| Straight Bore Inside Diameter | 1.000 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Mounting Type and Location | FLANGE PISTON ROD 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 |
|---|---|
| B305744 PRIMARY | Control Flow, Inc. Dba Control Flow Inc (USA) |
| Reference | Meaning |
|---|---|
| B305744 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 2530-01-019-4843 is a Cylinder Assembly,hydraulic Brak, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-019-4843 has 1 manufacturer part number on file: B305744 (Control Flow, Inc. Dba Control Flow Inc).
Key specifications for B305744: Actuation Method: DIRECT; Mounting Facility Diameter: 0.406 INCHES NOMINAL IN; Overall Height: 4.500 INCHES NOMINAL IN; Center to Center Distance Between Mounting Provisions: 3.375 INCHES NOMINAL IN. 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.