The Gear,internal, cataloged under National Stock Number 3020-00-237-3681, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-237-3681 |
| Primary Part Number | 11623175 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Teeth Quantity | 42 |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.6119 INCHES IN |
| Flange Nominal Diameter | 12.750 INCHES IN |
| Mounting Hole Type and Quantity | 6 PLAIN AXIALLY THROUGH FLANGE |
| Mounting Hole Nominal Diameter | 0.641 INCHES AXIALLY THROUGH FLANGE IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 2.310 INCHES IN |
| Style Designator | FLANGED RING |
| Material Document and Classification | QQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 8.0000 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 65-35 OVERALL |
| Bolt Hole Circle Nominal Diameter | 11.500 INCHES AXIALLY THROUGH FLANGE IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 2.312 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 |
NSN 3020-00-237-3681 is a Gear,internal, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-237-3681 has 2 manufacturer part numbers on file: EA4438C (Abm Equipment, Llc), 11623175 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11623175: Teeth Quantity: 42; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.6119 INCHES IN; Flange Nominal Diameter: 12.750 INCHES IN. 18 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.