The Gear,internal, cataloged under National Stock Number 3020-01-187-1385, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-187-1385 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 91 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Flange Nominal Thickness | 0.380 INCHES IN |
| Flange Nominal Diameter | 21.000 INCHES IN |
| Teeth Type | SPUR |
| Style Designator | FLANGED RING |
| Material Document and Classification | SAE 9310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 18.0556 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 19.1260 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Face Nominal Width | 1.050 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 |
|---|---|
| K674326 | 1/2 Source control — Government-approved source U.S. Government activity |
| K674326-19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-187-1385 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-187-1385: Teeth Quantity: 91; Body Style: PLAIN, WITH LIGHTENING HOLES; Flange Nominal Thickness: 0.380 INCHES IN; Flange Nominal Diameter: 21.000 INCHES IN. 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 3020-01-187-1385 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.