The Gear,spur, cataloged under National Stock Number 3020-00-700-2285, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-700-2285 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.538 INCHES BOTH ENDS IN |
| Teeth Quantity | 97 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.703 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.744 INCHES FIRST END IN |
| First Step Nominal Length | 0.194 INCHES FIRST END IN |
| First Step Nominal Length | 0.303 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 11 |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM TEETH |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS 6415 ASSN STD 1ST MATERIAL RESPONSE OR 66 FED STD 2ND MATERIAL RESPONSE OR AISI/SAE 4340 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.8500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.780 INCHES SECOND END IN |
| First Step Nominal Diameter | 0.780 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| Spline Quantity | 11 BOTH ENDS |
| End Nominal Length | 0.550 INCHES FIRST END IN |
| End Nominal Length | 0.400 INCHES SECOND END IN |
| Nominal Outside Diameter | 4.948 INCHES IN |
| End Nominal Diameter | 0.669 INCHES FIRST END IN |
| End Nominal Diameter | 0.669 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Spline Pitch Diameter | 0.4803 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.253 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 |
|---|---|
| 373804 | 3/2 Design control — primary reference U.S. Government activity |
| 373804 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 3020-00-700-2285 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-700-2285: Bore Nominal Diameter: 0.538 INCHES BOTH ENDS IN; Teeth Quantity: 97; Body Style: WEBBED, WITH LIGHTENING HOLES; Bore Style: INVOLUTE SPLINE BOTH ENDS. 27 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 3020-00-700-2285 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.