The Gear,spur, cataloged under National Stock Number 3020-01-128-5877, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-128-5877 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Teeth Quantity | 27 |
| Body Style | PLAIN, SOLID |
| Bore Style | PARTIAL FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.375 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.075 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUBS |
| Bore Nominal Depth | 0.719 INCHES FIRST END IN |
| Material Document and Classification | AMS5643,17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.5625 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 0.603 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 630 OVERALL |
| Face Nominal Width | 0.100 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 |
|---|---|
| 2771555-102 | 3/2 Design control — primary reference U.S. Government activity |
| 2771555-102 | 3/9 Design control — primary reference U.S. Government activity |
| 2771555 | D/9 Drawing number reference only U.S. Government activity |
| 10106679 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 3020-01-128-5877 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-128-5877: Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Teeth Quantity: 27; Body Style: PLAIN, SOLID. 17 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 3020-01-128-5877 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.