The Gear,spur, cataloged under National Stock Number 3020-01-079-9225, 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 Naval Sea Systems Command. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-079-9225 |
| Primary Part Number | 5210678 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.1768 INCHES BOTH ENDS IN |
| Teeth Quantity | 30 |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.215 INCHES FIRST END IN |
| First Step Nominal Length | 0.047 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 12 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | AISI 416/SAE 51416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.4687 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.320 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.195 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.500 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| End Nominal Diameter | 0.249 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.188 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 |
| Part Number | Manufacturer |
|---|---|
| 5210678 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3020-01-079-9225 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-079-9225 has 1 manufacturer part number on file: 5210678 (Naval Sea Systems Command).
Key specifications for 5210678: Bore Nominal Diameter: 0.1768 INCHES BOTH ENDS IN; Teeth Quantity: 30; Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, 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.
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.