The Gear,spur, cataloged under National Stock Number 3020-01-313-6838, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-313-6838 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 13.9 MILLIMETERS BOTH ENDS MM |
| Teeth Quantity | 18 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 6.4 MILLIMETERS BOTH ENDS MM |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 27.0 MILLIMETERS NOMINAL MM |
| Spline Quantity | 27 BOTH ENDS |
| Nominal Outside Diameter | 30.0 MILLIMETERS MM |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4130 OVERALL |
| Spline Pitch Diameter | 14.2 MILLIMETERS NOMINAL BOTH ENDS MM |
| Face Nominal Width | 14.9 MILLIMETERS MM |
| 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 |
|---|---|
| 387-3530-3 | 3/9 Design control — primary reference Kosmo Gears |
| 387-3530-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
| 387-3530-3 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| 387-3530-3 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
| 387-3530-3 | 5/9 Secondary reference Marino Enterprises, Inc. Dba Gear Technology Div Gear Technology |
NSN 3020-01-313-6838 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-313-6838: Bore Nominal Diameter: 13.9 MILLIMETERS BOTH ENDS MM; Teeth Quantity: 18; Body Style: PLAIN, SOLID; Bore Style: INVOLUTE SPLINE BOTH ENDS. 13 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 3020-01-313-6838 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.