The Piston,hydraulic Brake, cataloged under National Stock Number 2530-01-375-8174, 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 Chrysler Realty Company Llc Dba Daimler Chrysler. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-375-8174 |
| Primary Part Number | 4728 121 |
| Item Name | Piston,hydraulic Brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Chrysler Realty Company Llc Dba Daimler Chrysler |
| Status | ACTIVE |
| Surface Condition | EXTERNALLY GROOVED |
| Construction Type | ONE-PIECE |
| 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 |
|---|---|
| 4728 121 | Chrysler Realty Company Llc Dba Daimler Chrysler (USA) |
| Reference | Meaning |
|---|---|
| 4713 874 | 5/9 Secondary reference U.S. Government activity |
| 4713 874 | 5/9 Secondary reference Chrysler Realty Company Llc Dba Daimler Chrysler |
| 4728 121 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2530-01-375-8174 is a Piston,hydraulic Brake, manufactured by Chrysler Realty Company Llc Dba Daimler Chrysler, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-375-8174 has 1 manufacturer part number on file: 4728 121 (Chrysler Realty Company Llc Dba Daimler Chrysler).
Key specifications for 4728 121: Surface Condition: EXTERNALLY GROOVED; Special Features: FURNISHED WITH BOOT AND SEAL PACKAGE; End Item Identification: 1992 CHRYSLER CORP PASSENGER CAR,FWD TRUCK AND VAN; Construction Type: ONE-PIECE. 2 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.