The Cup,hydraulic Brake Cylinder, cataloged under National Stock Number 2530-00-211-4457, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-211-4457 |
| Item Name | Cup,hydraulic Brake Cylinder |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Status | ACTIVE |
| Feathered Lip Feature | NOT INCLUDED |
| Largest Outside Diameter | 0.968 INCHES NOMINAL IN |
| Outer Periphery Base Groove | NOT INCLUDED |
| Mounting Method | FLAT BASE |
| Sealing Lip Length | 0.156 INCHES NOMINAL IN |
| Size Designator | 15/16 |
| Base Outside Diameter | 0.920 INCHES NOMINAL IN |
| Base Inside Projection | NOT INCLUDED |
| Base Thickness | 0.105 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| Cup Protector | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| R93E | 3/9 Design control — primary reference U.S. Government activity |
NSN 2530-00-211-4457 is a Cup,hydraulic Brake Cylinder, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
Key specifications for 2530-00-211-4457: Feathered Lip Feature: NOT INCLUDED; Largest Outside Diameter: 0.968 INCHES NOMINAL IN; Outer Periphery Base Groove: NOT INCLUDED; Mounting Method: FLAT BASE. 11 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.