The Cylinder Assembly,actuating,line, cataloged under National Stock Number 2530-00-454-9690, 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 Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-454-9690 |
| Primary Part Number | HP440143 |
| Item Name | Cylinder Assembly,actuating,line |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems |
| Status | ACTIVE |
| First Piston Rod End Thread Class | 2A A |
| Compressed Length | 26.812 INCHES NOMINAL IN |
| Extended Length | 33.812 INCHES NOMINAL IN |
| Design Characteristics | DOUBLE ACTING SINGLE CYLINDER |
| Overall Diameter | 3.125 INCHES NOMINAL IN |
| Port Thread Series Designator | UNF |
| Port Thread Class | 2B |
| Port Thread Quantity Per Inch | 18 |
| Body Material | STEEL |
| Port Thread Diameter | 0.625 INCHES NOMINAL IN |
| Bore Diameter | 2.750 INCHES NOMINAL IN |
| Mounting Type and Location | BALL SOCKET CYLINDER HEAD 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 |
|---|---|
| HP440143 PRIMARY | Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems (USA) |
| Reference | Meaning |
|---|---|
| 2338K1-5 | 5/9 Secondary reference Diamond Reo Truck Co |
| 10383K1 | 5/9 Secondary reference Diamond Reo Truck Co |
| 2338K1 | 5/9 Secondary reference Diamond Reo Truck Co |
| 3006654 | 5/9 Secondary reference White Motor Corp |
NSN 2530-00-454-9690 is a Cylinder Assembly,actuating,line, manufactured by Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-454-9690 has 1 manufacturer part number on file: HP440143 (Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems).
Key specifications for HP440143: First Piston Rod End Thread Class: 2A A; Compressed Length: 26.812 INCHES NOMINAL IN; Extended Length: 33.812 INCHES NOMINAL IN; Design Characteristics: DOUBLE ACTING SINGLE CYLINDER. 12 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.