Model: 255-03

Valve Seat

Special Features:

Lower seat

Properties:

Thread Class

3a single threaded portion

Thread Length

0.172 inches single threaded portion

Flange Diameter

1.750 inches

Body Inside Diameter

1.375 inches

Flange Seat To Disk End Height

0.188 inches

Under Flange Height

0.250 inches

Thready Qty Per Inch (tpi)

18 single threaded portion

Hardness Rating

Not rated

Thread Size

1.625 inches single threaded portion

Seating Surface Shape

Flat

Material

Stainless steel

Material Specification

Qq-s-763 federal specification single material response

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

NSN

4820-01-214-3808

Part Number

255-03

Description

Seat,valve

CAGE

55378

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.

Part 255-03 NSN 4820-01-214-3808

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

Pricing & Availability Check

Submit this form for stock availability and pricing.

How to Order

Ordering from buyaircraftparts.com

If you would like to order this valve seat (NSN 4820-01-214-3808) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours:	08:00-18:00 Eastern Standard Time
Phone:	+1 470-231-0824
Email:	Contact Form »

Schedule B and Export

Schedule B: 8481909090
SITC: 74790
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi