The Brake Shoe,railway Car, cataloged under National Stock Number 2240-00-099-8584, is classified within Federal Supply Class 2240 (Locomotive and Rail Car Accessories and Components) of the Railway Equipment group. The manufacturer of record is Airtek, Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2240-00-099-8584 |
| Primary Part Number | G-4684C9 |
| Item Name | Brake Shoe,railway Car |
| FSC / FSG | 2240 / 22 — Locomotive and Rail Car Accessories and Components |
| Manufacturer | Airtek, Inc |
| Status | ACTIVE |
| Overall Diameter | 35.500 INCHES NOMINAL IN |
| General Characteristics Item Description | UNFLANGED; 2 IN. THK METAL TO BACK OF REINFORCING PLATE; 17.75 IN. WHEEL RADIUS ACCOMMODATED IN |
| Material | IRON |
| 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 |
|---|---|
| G-4684C9 PRIMARY | Airtek, Inc (USA) |
| Reference | Meaning |
|---|---|
| G-4684C9 | 5/9 Secondary reference Abc Rail Products Corp |
| G4603C | 5/9 Secondary reference Matrix Metals, Llc Dba Baltimore Castings |
NSN 2240-00-099-8584 is a Brake Shoe,railway Car, manufactured by Airtek, Inc, classified under FSC 2240, Locomotive and Rail Car Accessories and Components. Status: active.
NSN 2240-00-099-8584 has 1 manufacturer part number on file: G-4684C9 (Airtek, Inc).
Key specifications for G-4684C9: Overall Diameter: 35.500 INCHES NOMINAL IN; General Characteristics Item Description: UNFLANGED; 2 IN. THK METAL TO BACK OF REINFORCING PLATE; 17.75 IN. WHEEL RADIUS ACCOMMODATED IN; Material: IRON. 3 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.