Valve Seat

Model / MPN: B53920 | NSN: 4820-00-992-4660

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

4820-00-992-4660

Sold in multiples of

1 EA

DEMIL

Thread Class

2a single threaded portion

Thread Length

1.000 inches single threaded portion

Flange Diameter

Between 2.460 inches and 2.480 inches

Seat Radius

Between 0.185 inches and 0.189 inches

Flange Seat To Disk End Height

1.000 inches

Under Flange Height

1.000 inches

Thready Qty Per Inch (tpi)

12 single threaded portion

Thread Size

2.000 inches single threaded portion

Seating Surface Shape

Radial

Body Stepped Inside Diameter

0.500 inches first step

Body Stepped Inside Diameter

0.703 inches second step

Body Stepped Inside Diameter

1.500 inches third step

Material

Steel body

Material

Steel seat

Material Specification

De15-15b mfr ref single material response body

Material Specification

Stellite haynes 6 mfr ref single material response seat

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

Fsc Application Data

Steam turbine, electric generation

B5392 Series Parts

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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B53920 Cross Reference

DC62NX1