Model: 9958

Valve Seat

Properties:

Thread Class
3a single threaded portion
Thread Length
0.750 inches single threaded portion
Flange Diameter
2.125 inches
Body Inside Diameter
1.313 inches
Flange Seat To Disk End Height
0.250 inches
Under Flange Height
0.875 inches
Thready Qty Per Inch (tpi)
12 single threaded portion
Hardness Rating
202.0 brinell standard body
Thread Size
1.750 inches single threaded portion
Seating Surface Shape
Angular
Material
Cobalt alloy seat
Material
Steel body
Material Specification
Mil-s-853, class 3, type a military specification single material response body
Style Designator
Threaded flanged
Thread Series Designator
Un single threaded portion
NSN
4810-00-218-6077
Part Number
9958
Description
Seat,valve
CAGE
90099

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 9958 NSN 4810-00-218-6077

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:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481909090
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  • End Use: Industrial machines, other
  • NAICS: 332911
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Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi

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