The Gear,helical, cataloged under National Stock Number 3020-00-569-8982, 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 Dresser Industries Inc Leroi Div. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-569-8982 |
| Primary Part Number | A26-652 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 LUBRICANT IMPREGNATED BEARING |
| Bore Nominal Diameter | 1.0005 INCHES BOTH ENDS IN |
| Helix Angle | 24.06664 DEGREES |
| Hub Nominal Diameter | 1.7500 INCHES BOTH ENDS IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.3320 INCHES FIRST END IN |
| Teeth Quantity | 49 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.0800 INCHES SECOND END IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 269.0 BRINELL HULTGREN MINIMUM AND 302.0 BRINELL HULTGREN MAXIMUM OVERALL |
| Style Designator | CONE SHAPE BODY, PROTRUDING HUB, RECESSED HUB |
| Pitch Diameter | 5.3665 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 5.5585 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | IRON CAST OVERALL |
| Face Nominal Width | 0.7500 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 |
NSN 3020-00-569-8982 is a Gear,helical, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-569-8982 has 2 manufacturer part numbers on file: A26-652 (Dresser Industries Inc Leroi Div), 8333227 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5996-01-191-7681. Verify interchangeability with system specifications before substitution.
Key specifications for A26-652: Furnished Items and Quantity: 2 LUBRICANT IMPREGNATED BEARING; Bore Nominal Diameter: 1.0005 INCHES BOTH ENDS IN; Helix Angle: 24.06664 DEGREES; Hub Nominal Diameter: 1.7500 INCHES BOTH ENDS 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.