The Gear,internal, cataloged under National Stock Number 3020-00-770-7437, 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 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-770-7437 |
| Primary Part Number | 7707437 |
| 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 | 70 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Teeth Type | SPUR |
| Nominal Overall Length | 3.906 INCHES IN |
| Style Designator | SOLID BACK RING, PROTRUDING HUB, RECESSED HUB |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 8620 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 11.6667 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Features Provided | ALIGNMENT HOLE |
| Spline Quantity | 35 BOTH ENDS |
| Nominal Outside Diameter | 12.8750 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Spline Pitch Diameter | 2.1875 INCHES NOMINAL BOTH ENDS IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.188 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 3020-00-770-7437 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 3020-00-770-7437 has 3 manufacturer part numbers on file: 7707437 (U S Army Tank Automotive Command Amsta-Im-Mm), 6765278 (General Motors Corp), 6765278 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 7707437: Teeth Quantity: 70; Body Style: WEBBED, OFFSET, WITH LIGHTENING HOLES; Bore Style: INVOLUTE SPLINE BOTH ENDS; Teeth Type: SPUR. 17 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.