The Gear,spur, cataloged under National Stock Number 3020-00-334-5341, 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 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-334-5341 |
| Primary Part Number | 1854773 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.767 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.9375 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.2968 INCHES SECOND END IN |
| Teeth Quantity | 39 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1718 INCHES FIRST END IN |
| First Step Nominal Length | 0.1406 INCHES FIRST END IN |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Pitch Diameter | 3.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.5000 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Spline Quantity | 11 BOTH ENDS |
| End Nominal Length | 0.0312 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.416 INCHES IN |
| End Nominal Diameter | 1.125 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 0.6875 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.875 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 |
|---|---|
| 1854773 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1854773 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 3020-00-334-5341 is a Gear,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-334-5341 has 1 manufacturer part number on file: 1854773 (Northrop Grumman Systems Corporation).
Key specifications for 1854773: Bore Nominal Diameter: 0.767 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.9375 INCHES SECOND END IN; Nominal Distance Between Body Face and Recessed Hub End: 0.2968 INCHES SECOND END IN; Teeth Quantity: 39. 22 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.