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Unit of Measure

Part Type

N/A Stud Assembly

Series

N/A 27S3

Head Style

N/A #2 Cross Recess

Stud Material

N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108

Cup Material

N/A Steel per ASTM A109

Spring & Cross Pin Material

N/A Music Wire per ASTM A228

Stud & Cup Finish

N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2

Spring & Cross Pin Finish

N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2

Dash Number

N/A 4.000

L

N/A 0.481-0.496 in

S

N/A 0.700 in

Notes

N/A Unless otherwise specified
1. Cross pin will withstand a pushout force of 50 lbs for cres, or 100 lbs for music wire and retain symmetry about centerline of stud within ±0.02.
2. Plus black dye color on stud and cup. Additional satinblack enamel on all visible surface (when locked). Over spray on stud shank and spring is acceptable. Dimension apply before paint.
For 11 and longer use:
L MIN = 0.361 + (0.030 x Dash Number)
L MAX = L MIN + 0.015
S = 0.58 + (0.030 x Dash Number)