Model: S251-4

Valve Seat

Special Features:

Spoked center hub accomodates 0.440 in. Diameter disk guide

Properties:

Thread Class
2a single threaded portion
Thread Length
0.813 inches single threaded portion
Overall Height
1.175 inches
Body Inside Diameter
3.235 inches
Seat Angle In Deg
45.000
Thready Qty Per Inch (tpi)
12 single threaded portion
Thread Size
3.625 inches single threaded portion
Seating Surface Shape
Angular
Material
Steel
Material Specification
Mil-s-15083 class 8 military specification single material response
Style Designator
B5 plain threaded
Style Designator
Plain threaded
Thread Series Designator
Un single threaded portion
NSN
4820-00-036-1233
Part Number
S251-4
Description
Seat,valve
CAGE
93591

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 S251-4 NSN 4820-00-036-1233

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22113
FIIG:
A15500
Concept No.:
App. Key:
A
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:



Privacy Policy    Terms & Conditions

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this valve seat (NSN 4820-00-036-1233) 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

Highest Rated Parts
Recently Purchased Parts
Hot Parts