The Gear,spur, cataloged under National Stock Number 3020-00-174-7637, 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 Viking Technologies, Ltd.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-174-7637 |
| Primary Part Number | 64101001 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Viking Technologies, Ltd. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.753 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE B |
| Teeth Quantity | 128 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 1.531 INCHES FIRST END IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Mounting Hole Type and Quantity | 3 COUNTERSUNK AXIALLY THROUGH BODY FIRST END |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Mounting Hole Nominal Diameter | 0.120 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-P-15035,TYPE FBE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.9990 INCHES MINIMUM AND 4.0000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 4.061 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | PLASTIC PHENOLIC OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.125 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Counterbore Nominal Depth | 0.062 INCHES FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.188 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 |
|---|---|
| 64101001 PRIMARY | Viking Technologies, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| P64101001 | 5/9 Secondary reference Viking Technologies, Ltd. |
NSN 3020-00-174-7637 is a Gear,spur, manufactured by Viking Technologies, Ltd., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-174-7637 has 1 manufacturer part number on file: 64101001 (Viking Technologies, Ltd.).
Key specifications for 64101001: Bore Nominal Diameter: 0.753 INCHES BOTH ENDS IN; Backlash Designation: GRADE B; Teeth Quantity: 128; Body Style: PLAIN, SOLID. 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.