The Gear,spur, cataloged under National Stock Number 3020-01-309-8182, 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 23 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-309-8182 |
| Primary Part Number | 709-6129491 ITEM 5 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.190 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.378 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.439 INCHES SECOND END IN |
| Teeth Quantity | 33 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN SECOND END |
| Bore Style | THREAD SERIES DESIGNATOR PARTIALLY THREADED FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.530 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.160 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.7500 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.000 INCHES FIRST END IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 2.883 INCHES IN |
| Thread Class | 2G FIRST END G |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | ACME FIRST END |
| Nominal Thread Length | 1.630 INCHES FIRST END IN |
| Face Nominal Width | 1.060 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 709-6129491 ITEM 5 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6129491 | D/9 Drawing number reference only Naval Sea Systems Command |
| 37-40-7848 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-309-8182 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-309-8182 has 1 manufacturer part number on file: 709-6129491 ITEM 5 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-312-7709, 3040-01-313-0594, 1095-01-313-4636. Verify interchangeability with system specifications before substitution.
Key specifications for 709-6129491 ITEM 5: Bore Nominal Diameter: 1.190 INCHES SECOND END IN; Hub Nominal Diameter: 1.378 INCHES FIRST END IN; Hub Nominal Diameter: 1.439 INCHES SECOND END IN; Teeth Quantity: 33. 23 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.
NSN 3020-01-309-8182 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.