The Gear,worm Wheel, cataloged under National Stock Number 3020-00-254-8840, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3020-00-254-8840 |
| Primary Part Number | 74151 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Telemechanics Inc |
| Status | CANCELLED |
| Body Style | PLAIN, SOLID |
| Pitch Diameter | 1.6640 INCHES NOMINAL IN |
| Teeth Quantity | 35 |
| Nominal Outside Diameter | 1.844 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Mating Thread Lead Quantity | 2 |
| Style Designator | HUBLESS |
| Tooth Direction | LEFT |
| Material | PLASTIC PHENOLIC OVERALL |
| Throat Nominal Radius | 0.250 INCHES IN |
| Bolt Hole Circle Nominal Diameter | 0.875 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Face Nominal Width | 0.531 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Surface Treatment | VARNISH OVERALL |
| Mounting Hole Nominal Diameter | 0.156 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Type and Quantity | 3 COUNTERBORED AXIALLY THROUGH BODY FIRST END |
| Helix Angle | 9.4667 DEGREES |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Face Type | CONCAVE |
| Attachment Method | MOUNTING HOLE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 3020-00-254-8840 is a Gear,worm Wheel, manufactured by Telemechanics Inc, classified under FSC 3020 (No Item Name Available). Status: cancelled.
NSN 3020-00-254-8840 has 2 cross-referenced part numbers: 74151 (Telemechanics Inc), 74151 (At and T Corp).
There are 6 known substitutes for 3020-00-254-8840: 5360-00-072-7261, 5970-00-112-7990, 4920-00-134-4861 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 74151: Body Style: PLAIN, SOLID; Pitch Diameter: 1.6640 INCHES NOMINAL IN; Teeth Quantity: 35; Nominal Outside Diameter: 1.844 INCHES IN. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 3020-00-254-8840 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.