The Gear,spur, cataloged under National Stock Number 3020-00-128-8982, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Astronautics Corporation of America. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-128-8982 |
| Primary Part Number | 103972 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Teeth Quantity | 312 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Flange Nominal Diameter | 3.441 INCHES IN |
| Pitch Diameter | 3.2500 INCHES NOMINAL IN |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 0.236 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Surface Treatment | PASSIVATE OVERALL |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| Counterbore Nominal Depth | 0.067 INCHES COUNTERBORE FIRST END IN |
| Nominal Outside Diameter | 3.270 INCHES IN |
| Bore Nominal Diameter | 3.062 INCHES BOTH ENDS IN |
| Counterbore Nominal Diameter | 3.333 INCHES COUNTERBORE FIRST END IN |
| Material Document and Classification | MIL-S-7720,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Face Nominal Width | 0.060 INCHES IN |
| Style Designator | FLANGED END |
| Flange Nominal Thickness | 0.195 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 103972 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3020-00-128-8982 is a Gear,spur, manufactured by Astronautics Corporation of America, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-128-8982 has 1 cross-referenced part number: 103972 (Astronautics Corporation of America).
There are 4 known substitutes for 3020-00-128-8982: 3110-00-198-2280, 5360-00-209-9956, 5962-01-031-1918 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 103972: Teeth Quantity: 312; Body Style: PLAIN, SOLID; Bore Style: W/COUNTERBORE COUNTERBORE FIRST END; Flange Nominal Diameter: 3.441 INCHES IN. 19 total characteristics are documented in the Federal Logistics Information System.