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Part Numbers

Item Number Item Description
4396560 Guide, Valve Stem

Master Requirement Codes

Code Translation
BQSF An indication of whether or not a bore counterbore is included.
BQDC An indication of whether or not a bore countersink is included.
ABXV The length of a straight line which passes through the center of a circular bore, and terminates at the circumference.
MATL The element, compound, or mixture of which an item is fabricated, excluding any surface treatment.
AETC A numeric value that reflects the hardness of a metallic item when used in conjunction with a hardness rating scale.
ABKV The length of a straight line which passes through the center of a circular figure or body, and terminates at the outside circumference.
ABHP The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
STYL The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

4396560 Valve Stem Guide

Cage 6N299

Technical Definition

Guide, Valve Stem, also referenced with federal logistics item name code 32562 - 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.

Technical Characteristics

Aa End Chamfer Length (BQSM):
0.032 inches nominal
Aa End Chamfer Angle In Deg (BQSN):
Aa End Diameter (BQSH):
0.618 inches nominal
Bb End Chamfer Angle In Deg (BQSL):
Bb End Shank Diameter (BQSJ):
0.616 inches nominal
Bore Counterbore (BQSF):
Not included
Bore Countersink (BQDC):
Not included
Bore Diameter (ABXV):
0.4060 inches nominal
Material (MATL):
Metallic Hardness Rating (AETC):
90.0 minimum rockwell b
Outside Diameter (ABKV):
0.626 inches nominal
Length From Aa End To Largest Diameter Face (BRQM):
0.625 inches nominal
Major Diameter Length (AGQK):
1.250 inches nominal
Overall Length (ABHP):
3.875 inches nominal
Style Designator (STYL):

National Stock Number (NSN)