The Gear,spur, cataloged under National Stock Number 3020-00-320-5204, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-320-5204 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.6998 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.640 INCHES BOTH ENDS IN |
| Teeth Quantity | 43 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 8 COUNTERBORED AXIALLY THROUGH BODY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.010 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.035 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 9 |
| Mounting Hole Nominal Diameter | 0.250 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | 66,AISI/SAE 4340 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.7917 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Features Provided | CASEHARDENED |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 1.8685 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.160 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.135 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 |
|---|---|
| CEC50056B-2 | 5/9 Secondary reference Caprice Engineering Company, Inc. |
| 365005-2 | 3/2 Design control — primary reference U.S. Government activity |
| CEC50056B | 5/9 Secondary reference Caprice Engineering Company, Inc. |
NSN 3020-00-320-5204 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-320-5204: Bore Nominal Diameter: 0.6998 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.640 INCHES BOTH ENDS IN; Teeth Quantity: 43; Body Style: WEBBED, OFFSET, SOLID. 22 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 3020-00-320-5204 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.