National Item Identification Number
00-490-4858
004904858
3040-00-490-4858
3040004904858
National Stock Number
Item Name
WORM SHAFT
Federal Supply Class
3040
Description
A drive shaft having helical thread(s) on a portion of its outer surface, machined bearing surface(s) and facilities for driving (other than a hub) on one or both ends of shaft. Designed to mate with a cam, gear sector, worm wheel, etc. Includes items with bearings. Excludes items having more than one worm complement of helical threads, items with a separate complement of gear teeth, and GEAR, WORM.
Commercial and Government Entity Code (Supplier Data)
70255
Reference Numbers (Part Numbers)
W21562
Required Categories
MATERIAL
SHAFT HARDNESS RATING
WORM THREAD QUANTITY
WORM PRESSURE ANGLE IN DE
Required Description
STEEL SAE 4140
48.0 ROCKWELL C MINIMUM AND
53.0 ROCKWELL C MAXIMUM
4
20.000;