The Gear,bevel, cataloged under National Stock Number 3020-01-179-5097, 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 Fairbanks Morse, Llc. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-179-5097 |
| Primary Part Number | P305873N |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.750 INCHES BOTH ENDS IN |
| Teeth Quantity | 56 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 64.2591 DEGREES |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.500 INCHES SECOND END IN |
| First Step Nominal Length | 0.040 INCHES SECOND END IN |
| Teeth Type | SPIRAL |
| Nominal Overall Length | 1.374 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | 66,AISI/SAE FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.6142 INCHES NOMINAL IN |
| First Step Nominal Diameter | 2.640 INCHES SECOND END IN |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.460 INCHES SECOND END IN |
| Nominal Outside Diameter | 6.717 INCHES IN |
| End Nominal Diameter | 1.261 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4140 OVERALL |
| Face Nominal Width | 0.795 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 |
|---|---|
| P305873N PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| P305873N | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-01-179-5097 is a Gear,bevel, manufactured by Fairbanks Morse, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-179-5097 has 1 manufacturer part number on file: P305873N (Fairbanks Morse, Llc).
Key specifications for P305873N: Bore Nominal Diameter: 0.750 INCHES BOTH ENDS IN; Teeth Quantity: 56; Body Style: PLAIN, SOLID; Pitch Angle: 64.2591 DEGREES. 20 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.