The Cup,hydraulic Brake Cylinder, cataloged under National Stock Number 2530-00-919-9784, 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 Kalmar AC Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2530-00-919-9784 |
| Primary Part Number | 4996776-3 |
| Item Name | Cup,hydraulic Brake Cylinder |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Feathered Lip Feature | INCLUDED |
| Largest Outside Diameter | 1.044 INCHES NOMINAL IN |
| Projection Length | 0.125 INCHES NOMINAL IN |
| Outer Periphery Base Groove | NOT INCLUDED |
| Mounting Method | CENTER HOLE |
| Mounting Hole Diameter | 0.636 INCHES NOMINAL IN |
| Sealing Lip Length | 0.068 INCHES NOMINAL IN |
| Size Designator | 1 |
| Base Outside Diameter | 1.000 INCHES NOMINAL IN |
| Base Inside Projection | INCLUDED |
| Base Thickness | 0.060 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| Angle in Deg | 15.0 |
| Thru-Hole Length | 0.188 INCHES NOMINAL 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 |
|---|---|
| 4996776-3 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 617399 | C/1 Advisory reference — outside the item-of-supply concept Allied Automotive Allied Aftermarket Div |
| 74996776 | C/1 Advisory reference — outside the item-of-supply concept Kalmar AC Inc |
NSN 2530-00-919-9784 is a Cup,hydraulic Brake Cylinder, manufactured by Kalmar AC Inc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-00-919-9784 has 1 manufacturer part number on file: 4996776-3 (Kalmar AC Inc).
Key specifications for 4996776-3: Feathered Lip Feature: INCLUDED; Largest Outside Diameter: 1.044 INCHES NOMINAL IN; Projection Length: 0.125 INCHES NOMINAL IN; Outer Periphery Base Groove: NOT INCLUDED. 15 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.