The Gear,spur, cataloged under National Stock Number 3020-01-003-5200, 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 Designatronics Incorporated Div Sterling Instruments Div. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-003-5200 |
| Primary Part Number | E34A-42 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Designatronics Incorporated Div Sterling Instruments Div |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SETSCREW |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Teeth Quantity | 42 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.219 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | SAE 24ST ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.4375 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 0.458 INCHES IN |
| Surface Treatment | ANODIZE HUB |
| Surface Treatment | ANODIZE BODY |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Face Nominal Width | 0.187 INCHES IN |
| 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 |
|---|---|
| E34A-42 PRIMARY | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| Reference | Meaning |
|---|---|
| 419361-2042 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-003-5200 is a Gear,spur, manufactured by Designatronics Incorporated Div Sterling Instruments Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-003-5200 has 1 manufacturer part number on file: E34A-42 (Designatronics Incorporated Div Sterling Instruments Div).
Key specifications for E34A-42: Furnished Items and Quantity: 1 SETSCREW; Bore Nominal Diameter: 0.187 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 42. 19 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.