AIR FORCE - USAF STD 409 REV 4
PIN - 100 DEG. COUNTERSUNK HEAD, HIGH SHEAR, OVERSIZE
| Organization: | AIR FORCE |
| Publication Date: | 29 July 1953 |
| Status: | active |
| Page Count: | 1 |
scope:
MATERIAL: STEEL, SPEC. AN-5-9, AN-QQ-S-690, MIL-S-5626, MIL-S-6049, MIL-S-6050, MIL-S-6098 OR MIL-S-6758.
HEAT TREAT: 125,000 TO 150.000 PSL. SPEC. MIL-H-6875.
FINISH: CADMIUM PLATE. SPEC. QQ-P-416, TYPE I, CLASS A.
ROUGHNESS OF SURFACES OUTSIDE OF MAX GRIP SMALL NOT EXCEED 80 RMS MICRO INCHES MEASURED BEFORE PLATING.
ROUGHNESS OF SURFACES WITHIN MAX GRIP SHALL NOT EXCEED 60 RMS MICRO INCHES MEASURED BEFORE PLATING.
CONICAL SURFACE OF HEAD AND SHANK TO BE CONCENTRIC WITHIN .005 FULL INDICATOR READING.
EXAMPLE OF PART NO. 409-9-14 = PIN, 9/32 DIA, ⅞ MAX GRIP LENGTH. 409-9-19 = PIN, 9/32 DIA, 1-3/16 MAX GRIP LENGTH.
DIMENSION IN INCHES.
[4 circled]INACTIVE FOR DESIGN AND PROCUREMENT AFTER 29 JULY 33. SEE DRAWING MS21001.
FOR REPLACEMENT PURPOSES ONLY.
FOR DEFINITION AND APPLICATION OF DRAWING STATUS NOTES, SEE ANA BULLETIN NO. 337.
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