The Gear,helical, cataloged under National Stock Number 3020-00-189-5340, 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 Fwd Seagrave Holdings Lp. Government technical data includes 26 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 | 3020-00-189-5340 |
| Primary Part Number | 531092 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fwd Seagrave Holdings Lp |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.857 INCHES COUNTERBORE FIRST END IN |
| Helix Angle | 22.3167 DEGREES |
| Hub Nominal Diameter | 4.520 INCHES SECOND END IN |
| Teeth Quantity | 59 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 3.300 INCHES COUNTERBORE FIRST END IN |
| Tooth Direction | LEFT |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.970 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES SECOND END IN |
| First Step Nominal Length | 0.720 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4817 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 9.8330 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 4.340 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 10.1410 INCHES IN |
| End Nominal Diameter | 3.801 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.220 INCHES COUNTERBORE FIRST END IN |
| Face Nominal Width | 1.750 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 |
|---|---|
| 531092 PRIMARY | Fwd Seagrave Holdings Lp (USA) |
NSN 3020-00-189-5340 is a Gear,helical, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-189-5340 has 1 manufacturer part number on file: 531092 (Fwd Seagrave Holdings Lp).
Key specifications for 531092: Bore Nominal Diameter: 2.857 INCHES COUNTERBORE FIRST END IN; Helix Angle: 22.3167 DEGREES; Hub Nominal Diameter: 4.520 INCHES SECOND END IN; Teeth Quantity: 59. 26 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.