The Caliper,disc Brake, cataloged under National Stock Number 2530-01-374-6503, 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 Deval Life Cycle Support Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2530-01-374-6503 |
| Primary Part Number | 1378AS128-1 |
| Item Name | Caliper,disc Brake |
| FSC / FSG | 2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components |
| Manufacturer | Deval Life Cycle Support Llc |
| Status | ACTIVE |
| Material | ALUMINUM |
| 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 |
|---|---|
| 1378AS128-1 PRIMARY | Deval Life Cycle Support Llc (USA) |
| Reference | Meaning |
|---|---|
| H220-SAFC-0021 | 5/9 Secondary reference Tolomatic, Inc |
| 1378AS128-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 07330021 | 5/9 Secondary reference Tolomatic, Inc |
NSN 2530-01-374-6503 is a Caliper,disc Brake, manufactured by Deval Life Cycle Support Llc, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.
NSN 2530-01-374-6503 has 1 manufacturer part number on file: 1378AS128-1 (Deval Life Cycle Support Llc).
Key specifications for 1378AS128-1: Special Features: ITEM SHALL BE A HYDRAULIC ACTUATED,SINGLE ACTING TYPE WITH BUNA N SEALS AND BLEEDER SCREW; End Item Identification: SPECIAL ACFT & ENG TOOLS,SUPPORT EQUIP & PARTS; Material: ALUMINUM. 1 specification is 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.