The Gear,spur, cataloged under National Stock Number 3020-01-281-9408, 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 Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-281-9408 |
| Primary Part Number | 122-5343946 PC23 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.000 INCHES BOTH ENDS IN |
| Teeth Quantity | 121 |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Pitch Diameter | 7.7500 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| 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 |
|---|---|
| 122-5486623 PC101 | Naval Sea Systems Command (USA) |
| 122-5343946 PC23 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 122-5343946 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5343946-0023 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-281-9408 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-281-9408 has 2 manufacturer part numbers on file: 122-5486623 PC101 (Naval Sea Systems Command), 122-5343946 PC23 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-433-8305. Verify interchangeability with system specifications before substitution.
Key specifications for 122-5343946 PC23: Bore Nominal Diameter: 2.000 INCHES BOTH ENDS IN; Teeth Quantity: 121; Bore Style: INVOLUTE SPLINE BOTH ENDS; Pitch Diameter: 7.7500 INCHES NOMINAL IN. 5 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.