Furnished with fluorsilicone rubber o-ring per mil-r-25988, type 1, cl 1
A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
Classification: Zirconium and articles thereof nesoi
NSN 5910-01-519-6958
NSN 4140-00-829-8765
NSN 6135-00-519-1325
NSN 5996-00-363-9666
NSN 5945-00-269-5375
NSN 2925-00-278-9468
NSN 5950-00-718-6060
NSN 4140-00-246-4969
NSN 6220-01-126-0370
NSN 6620-01-304-4747
NSN 5925-01-202-9277
NSN 5910-01-491-4881