The Gear,spur, cataloged under National Stock Number 3020-01-384-0955, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-384-0955 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.609 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.790 INCHES FIRST END IN |
| Teeth Quantity | 18 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.273 INCHES FIRST END IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.8000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 18 BOTH ENDS |
| Nominal Outside Diameter | 2.000 INCHES IN |
| Surface Treatment | LUBRICANT DRY FILM BODY |
| Surface Treatment | LUBRICANT DRY FILM HUB |
| Surface Treatment | LUBRICANT DRY FILM TEETH |
| Surface Treatment | PHOSPHATE SPLINE |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OVERALL |
| Spline Pitch Diameter | 0.5625 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.500 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 |
|---|---|
| 025553-1 | C/1 Advisory reference — outside the item-of-supply concept Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| 025553-1 | 3/9 Design control — primary reference Meggitt Defense Systems, Inc. Dba Meggitt Western Design |
NSN 3020-01-384-0955 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-384-0955: Bore Nominal Diameter: 0.609 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.790 INCHES FIRST END IN; Teeth Quantity: 18; Body Style: WEBBED, OFFSET, SOLID. 21 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 3020-01-384-0955 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.