The Gear Cluster, cataloged under National Stock Number 3020-01-238-7063, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Iwc Llc Dba Ideal Windlass Company. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-238-7063 |
| Primary Part Number | CR10M-49 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Iwc Llc Dba Ideal Windlass Company |
| Status | ACTIVE |
| Design Type | WORM SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Material Document and Classification | MIL-B-16522 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EL-263-5 PIECE 49 | Iwc Llc Dba Ideal Windlass Company (USA) |
| CR10M-49 PRIMARY | Iwc Llc Dba Ideal Windlass Company (USA) |
| Reference | Meaning |
|---|---|
| EL-263-5 | D/9 Drawing number reference only Iwc Llc Dba Ideal Windlass Company |
| 3131476 PIECE 49 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-238-7063 is a Gear Cluster, manufactured by Iwc Llc Dba Ideal Windlass Company, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-238-7063 has 2 manufacturer part numbers on file: EL-263-5 PIECE 49 (Iwc Llc Dba Ideal Windlass Company), CR10M-49 (Iwc Llc Dba Ideal Windlass Company).
Key specifications for CR10M-49: Design Type: WORM SECOND GEAR; Design Type: SPUR FIRST GEAR; Material Document and Classification: MIL-B-16522 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY OVERALL. 4 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.