The Gear,spur, cataloged under National Stock Number 3020-01-092-8387, 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 Emerson Electric Co Browning Mfg Div. 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 | 3020-01-092-8387 |
| Primary Part Number | NSS4P20-3/4BORE |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Nominal Distance From End to Second Groove | 0.9375 INCHES FIRST END IN |
| Keyway Nominal Width | 0.375 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.000 INCHES FIRST END IN |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Bore Style | TAPERED W/KEYWAY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.313 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Taper Major Nominal Diameter | 1.9375 INCHES SECOND END IN |
| Pitch Diameter | 5.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Second Groove Nominal Width | 0.2183 INCHES SECOND END IN |
| Hub Style Designator | 2 GROOVES FIRST END |
| Nominal Outside Diameter | 5.500 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 1.1562 INCHES SECOND END IN |
| Nominal Distance From End to First Groove | 0.4062 INCHES FIRST END IN |
| Second Groove Nominal Diameter | 1.9375 INCHES SECOND END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 1.9375 INCHES FIRST END IN |
| First Groove Nominal Width | 0.2188 INCHES FIRST END IN |
| Face Nominal Width | 2.000 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 |
|---|---|
| NSS4P20-3/4BORE PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
NSN 3020-01-092-8387 is a Gear,spur, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-092-8387 has 1 manufacturer part number on file: NSS4P20-3/4BORE (Emerson Electric Co Browning Mfg Div).
Key specifications for NSS4P20-3/4BORE: Nominal Distance From End to Second Groove: 0.9375 INCHES FIRST END IN; Keyway Nominal Width: 0.375 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.000 INCHES FIRST END IN; Teeth Quantity: 20. 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.