The Gear,spur, cataloged under National Stock Number 3020-00-934-9633, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-934-9633 |
| Primary Part Number | 998627 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.367 INCHES FIRST END IN |
| Teeth Quantity | 27 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 0.328 INCHES COUNTER BORE SECOND END IN |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.155 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | 66 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.4220 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Nominal Thread Size | 0.112 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Nominal Outside Diameter | 0.451 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Counterbore Nominal Depth | 0.031 INCHES COUNTER BORE SECOND END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.031 INCHES SECOND END IN |
| Face Nominal Width | 0.047 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-00-934-9633 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-934-9633 has 2 manufacturer part numbers on file: 998627 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 998627 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 998627: Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.367 INCHES FIRST END IN; Teeth Quantity: 27; Body Style: WEBBED, OFFSET, SOLID. 23 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.