The Gear Sector,spur, cataloged under National Stock Number 3020-01-114-0139, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-114-0139 |
| Primary Part Number | 8436827-1 |
| Item Name | Gear Sector,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 |
| Keyway Nominal Width | 0.126 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.000 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.520 INCHES SECOND END IN |
| Teeth Quantity | 84 |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Outside Radius | 1.344 INCHES IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.056 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.384 INCHES FIRST END IN |
| First Step Nominal Length | 0.230 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Nominal Overall Length | 0.610 INCHES IN |
| First Step Nominal Diameter | 1.880 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 0.155 INCHES FIRST END IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.570 INCHES BOTH ENDS IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pitch Radius | 1.3125 INCHES NOMINAL IN |
| End Nominal Diameter | 1.520 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Nominal Width | 0.170 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 |
|---|---|
| 8436827-1 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3020-01-114-0139 is a Gear Sector,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 3020-01-114-0139 has 1 manufacturer part number on file: 8436827-1 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 8436827-1: Keyway Nominal Width: 0.126 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.000 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.520 INCHES SECOND END IN; Teeth Quantity: 84. 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.
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.