The Sprocket Wheel, cataloged under National Stock Number 3020-01-256-0786, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-256-0786 |
| Primary Part Number | EM1-9 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Hardness Rating Test Method | NOT RATED |
| Securing Location | AA END |
| Lubrication Mode | NO VISIBLE MEANS |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE |
| Design Form | PLAIN |
| Style Designator | PLAIN |
| Furnished Items and Quantity | TWO SETSCREWS |
| Furnished Items | BORE BEARING |
| Pitch Diameter | 0.431 INCHES NOMINAL IN |
| Outside Diameter | 0.483 INCHES NOMINAL IN |
| Bore Diameter | 0.124 INCHES NOMINAL IN |
| Bore Length | 0.312 INCHES NOMINAL IN |
| Material | STEEL COMP 303 |
| Hub Outside Diameter | 0.312 INCHES NOMINAL AA END IN |
| Teeth Quantity Per Row | 9 |
| Tooth Pitch | 0.147 INCHES NOMINAL IN |
| Protruding Hub Characteristic | PLAIN |
| Teeth Row Quantity | 1 |
| Face Width | 0.125 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.180 INCHES NOMINAL AA END IN |
| Bore Type | STRAIGHT |
| Securing Method | SETSCREW |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| EM1-9 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| 2276631 PIECE 13 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 3020-01-256-0786 is a Sprocket Wheel, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-01-256-0786 has 2 cross-referenced part numbers: EM1-9 (Roller Bearing Co of America, Inc Div Pic Design), 2276631 PIECE 13 (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 4 known substitutes for 3020-01-256-0786: 5998-01-245-5380, 5310-01-282-3216, 6530-01-472-6786 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for EM1-9: Hardness Rating Test Method: NOT RATED; Securing Location: AA END; Lubrication Mode: NO VISIBLE MEANS; Material Document and Classification: AISI 303 ASSN STD SINGLE MATERIAL RESPONSE. 23 total characteristics are documented in the Federal Logistics Information System.