Model: 525-25

Valve Seat

Properties:

Body Outside Diameter
Between 0.570 inches and 0.572 inches
Body Inside Diameter
Between 0.312 inches and 0.313 inches
Flange Seat To Disk End Height
0.250 inches
Under Flange Height
0.969 inches
Seal Accommodation Type
Grooved
Hardness Rating
45.0 rockwell c body and 50.0 rockwell c body
Seating Surface Shape
Flat
Material
Steel
Material Specification
Sae 52100 assn standard single material response
Surface Treatment
Cadmium
Fsc Application Data
Aircraft propeller feathering pump
NSN
4820-00-486-3400
Part Number
525-25
Description
Seat,valve
CAGE
45934

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 525-25 NSN 4820-00-486-3400

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:
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

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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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