The Brake Drum, cataloged under National Stock Number 2530-01-255-7647, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-255-7647 |
| Primary Part Number | 1398AS195-4 |
| Item Name | Brake Drum |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Hole Quantity | 5 |
| Mounting Hole Spacing | EQUALLY SPACED ON 2.1399 IN. BOLT CIRCLE IN |
| Mounting Hole Diameter | 0.406 INCHES NOMINAL IN |
| Overall Outside Diameter | 7.428 INCHES NOMINAL IN |
| Braking Surface Location | INTERNAL |
| Center Hole Diameter | 3.377 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1398AS195-4 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 2530-01-255-7647 is a Brake Drum, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-255-7647 has 1 manufacturer part number on file: 1398AS195-4 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1398AS195-4: Mounting Hole Quantity: 5; Mounting Hole Spacing: EQUALLY SPACED ON 2.1399 IN. BOLT CIRCLE IN; Mounting Hole Diameter: 0.406 INCHES NOMINAL IN; Overall Width: 2.835 INCHES NOMINAL IN. 6 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.
NSN 2530-01-255-7647 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.