NSN 3020-01-026-4021
Part Details | SPROCKET WHEEL
3020-01-026-4021 A toothed wheel whose teeth or sprockets are designed to be engaged with the links of a pitch chain, track, or the like. It is usually used for transmitting power.
Alternate Parts: 30211371, 3021137-1, 3020-01-026-4021, 01-026-4021, 3020010264021, 010264021
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | AUG 22, 1976 | 01-026-4021 | 04456 ( SPROCKET WHEEL ) |
REFERENCE DRAWINGS & PICTURES
PLAIN
Cross Reference | NSN 3020-01-026-4021
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 3021137-1 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 3020-01-026-4021
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN |
| OUTSIDE DIAMETER | 3.979 INCHES NOMINAL |
| OVERALL LENGTH | 1.250 INCHES NOMINAL |
| PITCH DIAMETER | 3.607 INCHES NOMINAL |
| FACE WIDTH | 0.459 INCHES NOMINAL |
| DESIGN FORM | PLAIN |
| LIGHTENING HOLE | NOT INCLUDED |
| BELT/CHAIN/FILM SIZE FOR WHICH DESIGNED | ROLLER CHAIN |
| ROLLER CHAIN PITCH TYPE FOR WHICH DESIGNED | SINGLE PITCH |
| TEETH ROW QUANTITY | 1 |
| TEETH QUANTITY PER ROW | 15 |
| TOOTH PITCH | 0.750 INCHES NOMINAL |
| ASA STANDARD CHAIN NUMBER | 60 |
| MATERIAL | STEEL COMP 4140 |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| TEETH HARDNESS RATING | RCB25.0 ROCKWELL C MAXIMUM AND 30.0 ROCKWELL C MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | RCBABQ25.0 ROCKWELL C MAXIMUM AND ABQ30.0 ROCKWELL C MAXIMUM |
| SURFACE TREATMENT | PHOSPHATE |
| BORE BEARING | NOT INCLUDED |
| BORE TYPE | STRAIGHT |
| COUNTERBORE FEATURE | NOT INCLUDED |
| BORE DIAMETER | 1.750 INCHES MINIMUM |
| BORE LENGTH | 1.250 INCHES NOMINAL |
| KEYING FACILITY | INCLUDED |
| KEYING FACILITY TYPE | KEYWAY |
| QUANTITY | 1 |
| KEYWAY WIDTH | 0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 1.111 INCHES MAXIMUM |
| PROTRUDING HUB CHARACTERISTIC | GROOVED |
| FIRST END GROOVE DIAMETER AND LOCATION | BBZ2.125 INCHES NOMINAL |
| FIRST END GROOVE WIDTH AND LOCATION | BBZ0.290 INCHES NOMINAL |
| FIRST END LENGTH FROM GROOVE TO END AND LOCATION | BBZ0.300 INCHES NOMINAL |
| HUB END OUTSIDE DIAMETER AND LOCATION | BBZ2.750 INCHES NOMINAL |
| DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION | BBZ0.791 INCHES NOMINAL |
| GROOVE/STEP LOCATION | AA END |
| HUB EXTERNAL KEYWAY | NOT INCLUDED |
| SECURING METHOD | KEY |
| SECURING LOCATION | BOTH ENDS |