The Gear,spur, cataloged under National Stock Number 3020-00-074-9355, 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 Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-074-9355 |
| Primary Part Number | 11687107 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.791 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.170 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.258 INCHES SECOND END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 60 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Counterbore Nominal Diameter | 1.008 INCHES SECOND END IN |
| Bore Style | W/COUNTERBORE SECOND END |
| Bore Style | INVOLUTE SPLINE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.359 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.291 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 9 |
| Hardness Rating | 42.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 20 FIRST END |
| Nominal Outside Diameter | 3.100 INCHES IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.100 INCHES SECOND END IN |
| Spline Pitch Diameter | 0.8333 INCHES NOMINAL FIRST END IN |
| Face Nominal Width | 0.437 INCHES IN |
| 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 |
|---|---|
| 11687107 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 717105-5 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
NSN 3020-00-074-9355 is a Gear,spur, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-074-9355 has 1 manufacturer part number on file: 11687107 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 11687107: Bore Nominal Diameter: 0.791 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.170 INCHES FIRST END IN; Hub Nominal Diameter: 1.258 INCHES SECOND END IN; Backlash Designation: GRADE C. 25 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.