Valve Seat

Model / MPN: 189991 | NSN: 4820-01-110-0145

A replaceable item designed to provide a 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.

Product Details

NATO Stock Number

4820-01-110-0145

Sold in multiples of

1 EA

DEMIL

Flange Diameter

0.990 inches

Body Outside Diameter

0.923 inches

Flange Seat To Disk End Height

0.181 inches

Under Flange Height

0.429 inches

Seat Angle In Deg

30.000

Seating Surface Shape

Angular

Body Stepped Inside Diameter

0.375 inches second step

Body Stepped Inside Diameter

0.429 inches first step

Body Stepped Inside Diameter

0.677 inches third step

Material

Stainless steel

Style Designator

Plain flanged

18999 Series Parts

Pricing and Availability

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189991 Cross Reference

190310-0030
281756-0002
281756-0002 ITEM 16