The Gear,worm Wheel, cataloged under National Stock Number 3020-00-157-8055, 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 27 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 | 3020-00-157-8055 |
| Primary Part Number | 318088PC1 |
| Item Name | Gear,worm Wheel |
| 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 | 1.625 INCHES BOTH ENDS IN |
| Helix Angle | 7.5943 DEGREES |
| Teeth Quantity | 25 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 2.250 INCHES FIRST END IN |
| Tooth Direction | LEFT |
| Bore Style | STRAIGHT SPLINE SECOND END |
| Bore Style | W/COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.594 INCHES FIRST END IN |
| First Step Nominal Length | 0.594 INCHES FIRST END IN |
| Throat Nominal Radius | 1.300 INCHES IN |
| Face Type | CONCAVE |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | 49-S-2 CLASS AN NICKEL STEEL MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.0000 INCHES NOMINAL IN |
| First Step Nominal Diameter | 3.500 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Spline Quantity | 6 SECOND END |
| End Nominal Length | 0.032 INCHES FIRST END IN |
| Nominal Outside Diameter | 5.747 INCHES IN |
| End Nominal Diameter | 2.750 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.281 INCHES FIRST END IN |
| Mating Thread Lead Quantity | 2 |
| Body Recess Nominal Depth | 1.100 INCHES SECOND END IN |
| Face Nominal Width | 1.970 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 |
|---|---|
| 318088PC1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-157-8055 is a Gear,worm Wheel, 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 3020-00-157-8055 has 1 manufacturer part number on file: 318088PC1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 318088PC1: Bore Nominal Diameter: 1.625 INCHES BOTH ENDS IN; Helix Angle: 7.5943 DEGREES; Teeth Quantity: 25; Body Style: PLAIN, SOLID. 27 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.