The Gear,spur, cataloged under National Stock Number 3020-00-706-9355, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-706-9355 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.0937 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.8750 INCHES SECOND END IN |
| Teeth Quantity | 220 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | TAPERED W/KEYWAY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.4062 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.0225 INCHES SECOND END IN |
| First Step Nominal Length | 0.0625 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 9 |
| Style Designator | PROTRUDING HUBS |
| Taper Major Nominal Diameter | 0.3505 INCHES SECOND END IN |
| Material Document and Classification | FED STD 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE HUB |
| Material Document and Classification | MIL-B-944,COMP A MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | MIL-B-944,COMP A MIL SPEC SINGLE MATERIAL RESPONSE TEETH |
| Pitch Diameter | 4.5833 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.1250 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 0.3437 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.6250 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.0500 INCHES SECOND END IN |
| Surface Treatment | PASSIVATE HUB |
| End Nominal Diameter | 0.5652 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY TEETH |
| Material | STEEL COMP 304 HUB |
| Attachment Method | PRESS FIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 311-347 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-706-9355 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5905-00-904-8505. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-706-9355: Keyway Nominal Width: 0.0937 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.8750 INCHES SECOND END IN; Teeth Quantity: 220; Body Style: PLAIN, WITH LIGHTENING HOLES. 29 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.