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:

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:

576

TCC:

SHC:

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