The Gear,spur, cataloged under National Stock Number 3020-01-063-7290, 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 Northrop Grumman Systems Corporation. Government technical data includes 17 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 | 3020-01-063-7290 |
| Primary Part Number | 154229 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.813 INCHES BOTH ENDS IN |
| Teeth Quantity | 14 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 |
| Hardness Rating | 320.0 BRINELL HULTGREN MINIMUM AND 360.0 BRINELL HULTGREN MAXIMUM OVERALL |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-S-5000,COND 4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Spline Quantity | 12 BOTH ENDS |
| Nominal Outside Diameter | 2.000 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Counterbore Nominal Depth | 0.500 INCHES FIRST END IN |
| Spline Pitch Diameter | 0.7500 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.182 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 |
|---|---|
| 154229 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 3020-01-063-7290 is a Gear,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-063-7290 has 1 manufacturer part number on file: 154229 (Northrop Grumman Systems Corporation).
Key specifications for 154229: Bore Nominal Diameter: 0.813 INCHES BOTH ENDS IN; Teeth Quantity: 14; Body Style: PLAIN, SOLID; Bore Style: INVOLUTE SPLINE BOTH ENDS. 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.