Model: 17935

Valve Seat

Properties:

Thread Class
3a single threaded portion
Thread Length
0.187 inches single threaded portion
Flange Diameter
0.747 inches
Body Outside Diameter
Between 0.670 inches and 0.672 inches
Body Inside Diameter
Between 0.374 inches and 0.376 inches
Flange Seat To Disk End Height
0.281 inches
Under Flange Height
0.500 inches
Seal Accommodation Type
Grooved
Thready Qty Per Inch (tpi)
18 single threaded portion
Hardness Rating
55.0 rockwell c and 60.0 rockwell c
Thread Size
0.625 inches single threaded portion
Seating Surface Shape
Flat
Material
Steel
Material Specification
Qq-s-763, class 440c federal specification single material response
Surface Treatment
Passivate
Style Designator
Plain flanged
Thread Series Designator
Unf single threaded portion
Fsc Application Data
Valve, brake control
NSN
4820-00-682-5320
Part Number
17935
Description
Seat,valve
CAGE
99643

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 17935 NSN 4820-00-682-5320

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:
A
ESD:
ESD:
MMAC:
LE
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
60.0
WCC:
671
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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

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