The Gear Cluster, cataloged under National Stock Number 3020-00-987-7683, 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 Peripheral Equipment Custom Repair Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-987-7683 |
| Primary Part Number | 138240 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Peripheral Equipment Custom Repair Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SETSCREW |
| Bore Nominal Diameter | 0.251 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.437 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.750 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Design Type | BEVEL SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 0.623 INCHES IN |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN BOTH ENDS |
| Hub Nominal Length | 0.078 INCHES FIRST END IN |
| Hub Nominal Length | 0.125 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.062 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.750 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 0.755 INCHES SECOND GEAR IN |
| Material | PLASTIC POLYAMIDE NYLON AND COPPER ALLOY SHAFT/HUB |
| Material | PLASTIC POLYAMIDE NYLON FIRST GEAR |
| Material | PLASTIC POLYAMIDE NYLON SECOND GEAR |
| Construction | ASSEMBLED |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 138240 PRIMARY | Peripheral Equipment Custom Repair Inc (USA) |
| 499-016-062 | L3harris Interstate Electronics Corporation (USA) |
| Reference | Meaning |
|---|---|
| 138240 | 5/9 Secondary reference Tally Printer Corporation |
NSN 3020-00-987-7683 is a Gear Cluster, manufactured by Peripheral Equipment Custom Repair Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-987-7683 has 2 manufacturer part numbers on file: 138240 (Peripheral Equipment Custom Repair Inc), 499-016-062 (L3harris Interstate Electronics Corporation).
Key specifications for 138240: Furnished Items and Quantity: 1 SETSCREW; Bore Nominal Diameter: 0.251 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.437 INCHES SECOND END IN; Hub Nominal Diameter: 0.500 INCHES FIRST END IN. 21 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.