The Mechanism,clutch, cataloged under National Stock Number 2520-01-453-5634, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Blm Automatic Clutch Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2520-01-453-5634 |
| Primary Part Number | M3503 |
| Item Name | Mechanism,clutch |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Blm Automatic Clutch Ltd |
| Status | ACTIVE |
| 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 |
|---|---|
| M3503 | Blm Automatic Clutch Ltd (CAN) |
| Reference | Meaning |
|---|---|
| M-3503 | D/9 Drawing number reference only Eagle Compressors, Inc. Dba Eagle Compressors |
| 74LB | 3/9 Design control — primary reference Eagle Compressors, Inc. Dba Eagle Compressors |
NSN 2520-01-453-5634 is a Mechanism,clutch, manufactured by Blm Automatic Clutch Ltd, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-453-5634 has 1 manufacturer part number on file: M3503 (Blm Automatic Clutch Ltd).
Key specifications for M3503: End Item Identification: 4310-01-256-0962. 0 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.