The Gear,spur, cataloged under National Stock Number 3020-01-102-1220, 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 L3 Technologies, Inc. Div L3 Keo. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-102-1220 |
| Primary Part Number | 055435 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Teeth Quantity | 96 |
| Body Style | PLAIN, SOLID |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.300 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 14 |
| Nominal Overall Length | 0.437 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-B-637,ALLOY 464,1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.9995 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Mounting Hole Thread Quantity Per Inch | 32 TRANSVERSELY THROUGH HUB FIRST END |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY 464 OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Face Nominal Width | 0.137 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 055435 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 933C055435 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 3020-01-102-1220 is a Gear,spur, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-102-1220 has 1 manufacturer part number on file: 055435 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 055435: Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Teeth Quantity: 96; Body Style: PLAIN, SOLID; Mounting Hole Type and Quantity: 1 THREADED TRANSVERSELY THROUGH HUB FIRST END. 16 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.
NSN 3020-01-102-1220 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.