National Item Identification Number
01-439-3971
014393971
4820-01-439-3971
4820-01-439-3971
National Stock Number
Item Name
PISTON,VALVE
Federal Supply Class
4820
Description
A cylindrical item of various configurations which reciprocates in a valve body, assisting in the movement of the disk to open or close a valve. May include additional components such as ring(s), collar(s), spring(s) and the like. Excludes DISK, VALVE.
Commercial and Government Entity Code (Supplier Data)
99240
Reference Numbers (Part Numbers)
2A1021-4
Required Categories
MATERIAL
SURFACE TREATMENT
VALVE DESIGN CONTROL ACTIVITY
OVERALL LENGTH
OUTS
Required Description
STEEL
PASSIVATE
99240
3.465 INCHES NOMINAL
1.238 INCHES MINIMUM AND
1.239 I