The Sprocket Wheel, cataloged under National Stock Number 3020-00-901-3748, 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 Roller Bearing Co of America, Inc Div Pic Design. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-901-3748 |
| Primary Part Number | EM5-26 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Hub Outside Diameter | 0.500 INCHES NOMINAL AA END IN |
| Securing Method | DRILLED HOLE OR THREADED HOLE(S) |
| Bore Length | 0.375 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.1475 INCHES NOMINAL IN |
| Outside Diameter | 1.272 INCHES MINIMUM AND 1.276 INCHES MAXIMUM IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 1.222 INCHES MINIMUM AND 1.224 INCHES MAXIMUM IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 26 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.250 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 2 |
| Thread Size | 0.138-32 |
| Drilled Hole Diameter | 0.067 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Hole Location | CENTERED 0.120 IN. FROM END OF HUB IN |
| Bore Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Face Width | 0.125 INCHES NOMINAL IN |
| Furnished Items and Quantity | SETSCREW 1 |
| Securing Location | AA END |
| 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 |
|---|---|
| EM5-26 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 14EM26S26 | 5/9 Secondary reference W. M. Berg, Inc. |
NSN 3020-00-901-3748 is a Sprocket Wheel, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-901-3748 has 1 manufacturer part number on file: EM5-26 (Roller Bearing Co of America, Inc Div Pic Design).
Key specifications for EM5-26: Hub Outside Diameter: 0.500 INCHES NOMINAL AA END IN; Securing Method: DRILLED HOLE OR THREADED HOLE(S); Bore Length: 0.375 INCHES NOMINAL IN; Design Form: PLAIN. 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.