The Gear Cluster, cataloged under National Stock Number 3020-01-413-0102, 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 B.w. Elliott Manufacturing Co., Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-413-0102 |
| Primary Part Number | A-505-12585-01 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | B.w. Elliott Manufacturing Co., Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.812 INCHES BOTH ENDS IN |
| Design Type | BEVEL ALL GEARS |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 0.811 INCHES IN |
| Nominal Outside Diameter | 1.812 INCHES ALL GEARS IN |
| Material | STEEL OVERALL |
| Construction | ASSEMBLED |
| 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 |
|---|---|
| A-505-12585-01 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| 12111 ITEM 5 | B.w. Elliott Manufacturing Co., Llc (USA) |
| B-805-12111 ITEM 5 | B.w. Elliott Manufacturing Co., Llc (USA) |
| 12585 P/N A-505-12585-01 | B.w. Elliott Manufacturing Co., Llc (USA) |
| Reference | Meaning |
|---|---|
| B-805-12111 | D/9 Drawing number reference only B.w. Elliott Manufacturing Co., Llc |
NSN 3020-01-413-0102 is a Gear Cluster, manufactured by B.w. Elliott Manufacturing Co., Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-413-0102 has 4 manufacturer part numbers on file: A-505-12585-01 (B.w. Elliott Manufacturing Co., Llc), 12111 ITEM 5 (B.w. Elliott Manufacturing Co., Llc), B-805-12111 ITEM 5 (B.w. Elliott Manufacturing Co., Llc), 12585 P/N A-505-12585-01 (B.w. Elliott Manufacturing Co., Llc).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-413-1388. Verify interchangeability with system specifications before substitution.
Key specifications for A-505-12585-01: Bore Nominal Diameter: 0.812 INCHES BOTH ENDS IN; Design Type: BEVEL ALL GEARS; Bore Style: PLAIN BOTH ENDS; Nominal Overall Length: 0.811 INCHES IN. 7 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.