The Gear,spur, cataloged under National Stock Number 3020-00-239-3848, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-239-3848 |
| Primary Part Number | 5355015C |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.3725 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.4988 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.5000 INCHES BOTH ENDS IN |
| Teeth Quantity | 48 |
| Body Style | WEBBED, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Hardness Rating | 86.0 ROCKWELL B MINIMUM AND 93.0 ROCKWELL B MAXIMUM OVERALL |
| Style Designator | FLUSH HUB |
| Material Document and Classification | MIL-S-890,CLASS C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 9.6000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 9.9985 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.9529 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.750 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 |
|---|---|
| 5355015C PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 5355015C | 3/9 Design control — primary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco |
NSN 3020-00-239-3848 is a Gear,spur, manufactured by Fairbanks Morse, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-239-3848 has 1 manufacturer part number on file: 5355015C (Fairbanks Morse, Llc).
Key specifications for 5355015C: Keyway Nominal Width: 0.3725 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.4988 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.5000 INCHES BOTH ENDS IN; Teeth Quantity: 48. 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.