Part Number
DEMIL
Shelf Life
UOM
NIIN
NSN
National Stock Number:
TXT
Description:
Concave Washer
MRC:
The length of a straight line which passes through the center of a hole,and terminates at the circumference.AAUB
Hole Diameter:
Between 0.252 inches and 0.258 inches
MRC:
The distance from the centerline to the axis of the item.ABGG
Radius:
Between 0.235 inches and 0.240 inches
MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.ABKV
Outside Diameter:
Between 0.375 inches and 0.385 inches
MRC:
A measurement between specified points on the recess,in distinction from height.ABMH
Recess Depth:
Between 0.040 inches and 0.050 inches
MRC:
A measurement of the smallest dimension of the material,in distinction from length or width.ABPX
Material Thickness:
Between 0.078 inches and 0.088 inches
MRC:
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.CQFM
Hardness Rating:
Between 38.0 rockwell c and 44.0 rockwell c
MRC:
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.CSYM
Surface Finish:
63.0 microinches counterbore wall
MRC:
A combination of timed heating and cooling operations applied for the purpose of annealing or hardening the item.HEAT
Heat Treatment:
As fabricated
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 8740 or steel comp 8630 or steel comp 4130 or steel comp 4027
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Mil-s-6049 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6758 military specification 3rd material response or mil-s-18729 military specification 3rd material response or astm a322 assn standard 4th material response
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Cadmium and chromate
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Qq-p-416, type 2, cl 3 federal specification single treatment response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Concave
MRC:
The document designator of the specification or standard which established the item of supply.ZZZK
Specification Data:
81205-bacw10au manufacturers standard
