4-40x0.312, 3/16 hex
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.
NSN 5950-01-377-2390
NSN 6620-01-145-7762
NSN 7035-00-938-8289
NSN 6685-00-762-8027
NSN 6320-00-937-5625
NSN 5915-01-029-2501
NSN 5996-00-283-3710
NSN 5998-00-292-9515
NSN 5999-00-731-4316
NSN 6130-01-010-3603
NSN 2925-01-155-5444
NSN 6145-01-418-2752