The Gear,spur, cataloged under National Stock Number 3020-00-673-3379, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-673-3379 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 111 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Hardness Rating | 59.0 ROCKWELL C NOMINAL TEETH |
| Style Designator | FLUSH HUB |
| Material Document and Classification | SAE9310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.9380 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Nominal Outside Diameter | 7.062 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.562 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 20207-2 | C/1 Advisory reference — outside the item-of-supply concept Defense & Development Enterprises Llc |
| 20207-2 | 3/9 Design control — primary reference Triumph Thermal Systems - Maryland, Inc. |
NSN 3020-00-673-3379 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5961-00-880-4783. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-673-3379: Teeth Quantity: 111; Body Style: WEBBED, WITH LIGHTENING HOLES; Bore Style: PLAIN BOTH ENDS; Hardness Rating: 59.0 ROCKWELL C NOMINAL TEETH. 12 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 3020-00-673-3379 has DEMIL Code Q. 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.