National Item Identification Number
01-172-5983
011725983
4820-01-172-5983
4820-01-172-5983
National Stock Number
Item Name
SEAT,VALVE
Federal Supply Class
4820
Description
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.
Commercial and Government Entity Code (Supplier Data)
43689
43689
Reference Numbers (Part Numbers)
2285-299 PIECE 4
256121PIECE14
Required Categories
MATERIAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
THE MANUFACTURERS DA
Required Description
DELRIN AF FIBER RESIN DE588 OVERALL
QUALITY ASSURANCE TESTED FOR THE SUBMARINE