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National Stock Number:
5340-01-530-6013
Federal Supply Class:
5340
National Item Identification Number:
015306013
Description:
STANDOFF,THREADED,SPACING
Detail:
A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see STUD (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see NUT (as modified); use maximum dimensions(s) for compliance.
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Manufacturer Information:
| ST4M138-04-50 | 04169 | ATLAS CORP WESTERN SKY INDUSTRIES DIV | | ST4M138-04-50 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| CROSS-SECTIONAL SHAPE | HEXAGON | | LEFT COUNTERBORE DEPTH | 0.205 INCHES NOMINAL | | LEFT COUNTERSINK ANGLE | 115.0 DEGREES MINIMUM AND 125.0 DEGREES MAXIMUM | | LEFT SLOT DEPTH | 0.500 INCHES NOMINAL | | LENGTH | 5.000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | RIGHT COUNTERBORE DEPTH | 0.500 INCHES NOMINAL | | RIGHT COUNTERSINK ANGLE | 115.0 DEGREES MINIMUM AND 125.0 DEGREES MAXIMUM | | RIGHT PROJECTION CHAMFER DEPTH | 0.205 INCHES NOMINAL | | RIGHT SLOT DEPTH | 0.500 INCHES NOMINAL | | SPECIAL FEATURES | FINISH IS ALODINE PER MIL-C-5541 (CHEMICAL CONVERSION COATING). | | WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL | | STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
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