The Gear,worm, cataloged under National Stock Number 3020-00-951-3642, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Whittaker Corp Whittaker Electronic Systems Div. Government technical data includes 15 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-951-3642 |
| Primary Part Number | 21492 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Whittaker Corp Whittaker Electronic Systems Div |
| Status | ACTIVE |
| Nominal Outside Diameter | 0.531 INCHES IN |
| Helix Angle | 1.7831 DEGREES |
| Hub Style Designator | PINNED FIRST END |
| Face Type | STRAIGHT |
| Pitch Diameter | 0.5000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Thread Form Direction | LEFT-HAND |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Thread Form Quantity | 1 |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Style Designator | PROTRUDING HUB |
| Pressure Angle | 14.5000 DEGREES |
| Face Nominal Width | 0.750 INCHES IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.220 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-951-3642 is a Gear,worm, manufactured by Whittaker Corp Whittaker Electronic Systems Div, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-951-3642 has 2 cross-referenced part numbers: 21492 (Whittaker Corp Whittaker Electronic Systems Div), 21492 (Esterline Electronics Corp).
There are 7 known substitutes for 3020-00-951-3642: 5110-00-186-4190, 2520-00-264-7247, 6625-00-463-4358 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21492: Nominal Outside Diameter: 0.531 INCHES IN; Helix Angle: 1.7831 DEGREES; Hub Style Designator: PINNED FIRST END; Face Type: STRAIGHT. 15 total characteristics are documented in the Federal Logistics Information System.