Model: 473A4

Valve Stem Guide

Properties:

Countersink Angle In Deg
45.0
Shoulder Diameter
1.250 inches
Shoulder Length
0.156 inches
Overall Length
4.313 inches
Outside Diameter
1.766 inches
Bore Diameter
Between 0.5000 inches and 0.5010 inches
Metallic Hardness Rating
18.8 rockwell c
Major Diameter Length
0.156 inches
Countersink Length
0.031 inches
Bore Countersink
Included
Countersink Location
Aa end
Bore Counterbore
Not included
Aa End Diameter
0.875 inches
Bb End Shank Diameter
Between 0.876 inches and 0.877 inches
Bb End Chamfer Length
0.031 inches
Bb End Chamfer Angle In Deg
75.0
Aa End Radius
0.094 inches
Shoulder First Fillet Radius
0.031 inches
Shoulder Second Fillet Radius
0.125 inches
Fillet Step Radius
0.031 inches
Length From Aa End To Largest Diameter Face
1.531 inches
Material
Cast iron alloy
Material
Cast iron alloy
Style Designator
Plain-stepped shoulder
Fsc Application Data
Engine, gasoline, non-aircraft
NSN
2805-00-354-4357
Part Number
473A4
Description
Guide,valve Stem
CAGE
56442

A replaceable cylindrical item designed to provide wear surface and maintain alignment of a reciprocating valve stem and the like, it may have a flange(s) and/or grooves.

Part 473A4 NSN 2805-00-354-4357

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
32562
FIIG:
T267-E
Concept No.:
App. Key:
EA
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

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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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