The Cylinder,hydraulic Brake,wheel, cataloged under National Stock Number 2530-00-616-7703, 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 Mack Trucks Inc Parts Opn. Government technical data includes 14 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-616-7703 |
| Primary Part Number | 43SM11 |
| Item Name | Cylinder,hydraulic Brake,wheel |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Mack Trucks Inc Parts Opn |
| Status | ACTIVE |
| Bleeding Feature Quantity | 1 |
| Design Characteristics | SINGLE ACTING SINGLE CYLINDER |
| Port Thread Series Designator | UNF ALL PORTS |
| Mounting Provision Arrangement Style | TWO HOLE |
| Mounting Facility Thread Quantity Per Inch | 18 |
| Bore Type | STRAIGHT |
| Port Thread Quantity Per Inch | 20 ALL PORTS |
| Mounting Facility Thread Length | 0.530 INCHES NOMINAL IN |
| Port Thread Diameter | 0.500 INCHES NOMINAL ALL PORTS IN |
| Mounting Facility Thread Diameter | 0.312 INCHES NOMINAL IN |
| Port Location and Quantity | 1 CENTER SECTION |
| Mounting Facility Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Mounting Facility Thread Direction | RIGHT-HAND |
| Mounting Provision | THREADED 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 |
|---|---|
| 43SM11 | Mack Trucks Inc Parts Opn (USA) |
| 6167703 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| FD613 | 3/9 Design control — primary reference Diamond Reo Truck Co |
| 353128 | 5/9 Secondary reference White Motor Corp |
| 92Y2192 | 5/9 Secondary reference Ford Motor Company |
| 26485W | 5/9 Secondary reference Diamond Reo Truck Co |
| 92Y2192 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 643156 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 080434 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 080434 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 2530-00-616-7703 is a Cylinder,hydraulic Brake,wheel, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-616-7703 has 2 manufacturer part numbers on file: 43SM11 (Mack Trucks Inc Parts Opn), 6167703 (U S Army Tank Automotive Command Amsta-Im-Mm).
3 possible matches (shared part number, not a government interchangeability claim): 2920-00-789-6568, 5305-01-161-6000, 5930-01-320-7696. Verify interchangeability with system specifications before substitution.
Key specifications for 43SM11: Bleeding Feature Quantity: 1; Design Characteristics: SINGLE ACTING SINGLE CYLINDER; Port Thread Series Designator: UNF ALL PORTS; Mounting Provision Arrangement Style: TWO HOLE. 14 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.