Valve Seat

Model / MPN: S275-4 | NSN: 4820-00-343-2117

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

4820-00-343-2117

Sold in multiples of

1 EA

DEMIL

Flange Diameter

Between 5.6190 inches and 5.6200 inches

Taper Minor Diameter

Between 4.3730 inches and 4.3770 inches

Taper Major Diameter

4.5620 inches

Body Outside Diameter

Between 5.2520 inches and 5.2525 inches

Body Inside Diameter

Between 4.3750 inches and 4.3755 inches

Flange Seat To Disk End Height

0.625 inches

Under Flange Height

0.875 inches

Seat Angle In Deg

60.000

Seal Accommodation Type

Grooved

Seating Surface Shape

Angular

Material

Steel comp f1 seat

Surface Treatment

Chromium seat

Style Designator

Plain flanged

S275 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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S275-4 Cross Reference

NL2071-1