The Gear,internal, cataloged under National Stock Number 3020-01-029-9262, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-029-9262 |
| Primary Part Number | 537AS596 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.880 INCHES BOTH ENDS IN |
| Teeth Quantity | 48 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 3.762 INCHES SECOND COUNTERBORE SECOND END IN |
| Bore Style | W/STEPPED COUNTERBORE SECOND END |
| Mounting Hole Type and Quantity | 24 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.040 INCHES FIRST END IN |
| First Step Nominal Length | 0.780 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.190 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Teeth Type | SPUR |
| Hardness Rating | 50.0 ROCKWELL C NOMINAL OVERALL |
| Nominal Overall Length | 1.376 INCHES IN |
| Style Designator | CONE, PROTRUDING HUB |
| Material Document and Classification | MIL-S-46850,TYPE III,GRADE 300 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.5100 INCHES NOMINAL IN |
| First Step Nominal Diameter | 4.120 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.260 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.510 INCHES IN |
| End Nominal Diameter | 3.370 INCHES FIRST END IN |
| Pressure Angle | 14.4832 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.600 INCHES SECOND COUNTERBORE SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.340 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 |
| Part Number | Manufacturer |
|---|---|
| 537AS596 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 3020-01-029-9262 is a Gear,internal, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-029-9262 has 1 manufacturer part number on file: 537AS596 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 537AS596: Bore Nominal Diameter: 2.880 INCHES BOTH ENDS IN; Teeth Quantity: 48; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 3.762 INCHES SECOND COUNTERBORE SECOND END IN. 25 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.