The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-341-9844, 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 Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 20 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 | 3020-00-341-9844 |
| Primary Part Number | 1237437-1 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Teeth Quantity | 80 |
| Second Step Nominal Diameter | 0.337 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.098 INCHES SECOND END IN |
| First Step Nominal Length | 0.046 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Nominal Overall Length | 0.536 INCHES IN |
| Second Step Nominal Length | 0.154 INCHES FIRST END IN |
| Style Designator | PERIPHERAL FACE, HUBLESS |
| Material Document and Classification | QQ-S-763,CLASS 6,TYPE C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.6289 INCHES MINIMUM AND 0.6299 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.095 INCHES FIRST END IN |
| Hub Style Designator | 2 STEPS BOTH ENDS |
| End Nominal Length | 0.058 INCHES SECOND END IN |
| End Nominal Length | 0.051 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.644 INCHES IN |
| End Nominal Diameter | 0.046 INCHES FIRST END IN |
| End Nominal Diameter | 0.046 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| 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 |
|---|---|
| 1237437-1 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
NSN 3020-00-341-9844 is a Gear,antibacklash,spur, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-341-9844 has 1 manufacturer part number on file: 1237437-1 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for 1237437-1: Teeth Quantity: 80; Second Step Nominal Diameter: 0.337 INCHES FIRST END IN; Nominal Distance Between Body Face and Protruding Hub End: 0.098 INCHES SECOND END IN; First Step Nominal Length: 0.046 INCHES FIRST END IN. 20 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.