The Cup,hydraulic Brake Cylinder, cataloged under National Stock Number 2530-00-753-9331, 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 Parker-Hannifin Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-00-753-9331 |
| Primary Part Number | C13270A |
| Item Name | Cup,hydraulic Brake Cylinder |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Parker-Hannifin Corporation |
| Status | ACTIVE |
| Feathered Lip Feature | NOT INCLUDED |
| Tapered Hole Minor Diameter | 0.215 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Largest Outside Diameter | 0.780 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN |
| Projection Length | 0.0935 INCHES MINIMUM AND 0.1085 INCHES MAXIMUM IN |
| Outer Periphery Base Groove | NOT INCLUDED |
| Mounting Method | CENTER HOLE |
| Material Document and Classification | SAE EN230 ASSN STD SINGLE MATERIAL RESPONSE |
| Sealing Lip Length | 0.0625 INCHES MINIMUM AND 0.0775 INCHES MAXIMUM IN |
| Size Designator | 23/32 IN. IN |
| Tapered Hole Major Diameter | 0.250 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Base Outside Diameter | 0.715 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Base Inside Projection | INCLUDED |
| Base Thickness | 0.0625 INCHES NOMINAL IN |
| Material | RUBBER NATURAL |
| Thru-Hole Length | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| C13270A PRIMARY | Parker-Hannifin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1681M5 | 5/9 Secondary reference Spalla Inc |
| 1681M5 | 5/9 Secondary reference Diamond Reo Truck Co |
NSN 2530-00-753-9331 is a Cup,hydraulic Brake Cylinder, manufactured by Parker-Hannifin Corporation, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-753-9331 has 1 manufacturer part number on file: C13270A (Parker-Hannifin Corporation).
Key specifications for C13270A: Feathered Lip Feature: NOT INCLUDED; Tapered Hole Minor Diameter: 0.215 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Largest Outside Diameter: 0.780 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN; Projection Length: 0.0935 INCHES MINIMUM AND 0.1085 INCHES MAXIMUM 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.