The Gear,spur, cataloged under National Stock Number 3020-01-141-5130, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-141-5130 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.500 INCHES SECOND END0.500 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.650 INCHES FIRST END0.650 INCHES FIRST END IN |
| Teeth Quantity | 108108 |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALLMIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLIDPLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDSPLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 1 THREADED AXIALLY THROUGH HUB FIRST END1 THREADED AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.125 INCHES SECOND END0.125 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.266 INCHES FIRST END0.266 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 12QUALITY NUMBER 12 |
| Nominal Overall Length | 0.453 INCHES0.453 INCHES IN |
| Material Document and Classification | QQ-S-764,TYPE 303SE,COND A/CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-S-764,TYPE 303SE,COND A/CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.4993 INCHES MINIMUM AND 1.4993 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM1.5000 INCHES MAXIMUM IN |
| Tooth Form | STANDARDSTANDARD |
| Hub Style Designator | PINNED FIRST ENDPINNED FIRST END |
| Hub Style Designator | PLAIN SECOND ENDPLAIN SECOND END |
| Mounting Hole Nominal Thread Size | 0.112 INCHES AXIALLY THROUGH HUB FIRST END0.112 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Mounting Hole Thread Quantity Per Inch | 40 AXIALLY THROUGH HUB FIRST END40 AXIALLY THROUGH HUB FIRST END |
| Surface Treatment | PASSIVATE OVERALLPASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES20.0000 DEGREES |
| Material | STEEL COMP 303SE OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH HUB FIRST ENDUNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLEMOUNTING HOLE |
| Face Nominal Width | 0.062 INCHES0.062 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 843378 | D/9 Drawing number reference only U.S. Government activity |
| 843378-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-141-5130 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-141-5130: Hub Nominal Diameter: 0.500 INCHES SECOND END0.500 INCHES SECOND END IN; Hub Nominal Diameter: 0.650 INCHES FIRST END0.650 INCHES FIRST END IN; Teeth Quantity: 108108; Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALLMIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL. 24 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 3020-01-141-5130 has DEMIL Code Q. 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.