MIL-DTL-45952A
3.5 Design and construction. The design and construction of the pins shall be as specified
herein and in accordance with MIL-P-45952/1.
3.5.1 Shank straightness. Pin shank straightness shall be as specified in Table I.
TABLE I. Shank Straightness.
Shank Diameter
Maximum Deviation
(Inch)
(Inch per Inch Grip Length)
.250
.0030
.375
.0025
.500 and up
.0020
3.5.2 Surface roughness. Pins shall have a maximum surface roughness(arithmetical
average), after application of protective finish, of 125 microinches. Values shall be determined in
accordance with ASME B46.1.
3.5.3 Insertion and removal force. Insertion and removal forces for these pins shall fall
within the limits specified in MIL-P-45952/1 when inserted and removed 15 times.
3.5.4 Ring. The ring shall be located within a hole through the head and shall be able to
rotate through the hole. The ring shall not break or deform when subjected to the maximum
removal force specified in MIL-P-45952/1.
3.6 Workmanship. Pins shall be free from pits, seams, cracks, burrs, scratches and other
surface contamination. Superficial scratches to the chromate coating in the staked ball area and
the head-shank juncture due to fabrication techniques shall be allowed.
3.7 Material certificate. The contractor shall furnish the Government with a mill certificate
covering the chemical requirements of the material being used to make the pins.
3.8 Marking. The pin shall be marked with the manufacturer's identification. Markings may
be raised or depressed.
4. VERIFICATION
4.1 Conformance inspection. Conformance inspection shall include the following.
4.2 Inspection lot. A lot shall consist of completed pins which are of the same part number,
produced by the same manufacturer under essentially the same conditions, and submitted for
acceptance at one time.
4.3 Sampling for lot inspection.
4.3.1 Sampling for examination. A random sample of pins shall be taken from each lot in
accordance with ASQ Z1.4, Inspection Level I.
4.3.2 Sampling for test of double-shear strength and insertion and removal force. A random
sample of pins shall be taken from each lot in accordance with ASQ Z1.4, Inspection Level S-2.
4.3.3 Sampling for protective finish. Sampling for test of protective finish shall be in
accordance with the applicable specification of 3.4.
4.4 Examination. Each pin sampled as specified in 4.3.1 shall be examined to verify
conformance with this specification. Examination shall be conducted in accordance with Table II.
Any pin containing a defect shall be rejected and if the number of defective pins in any individual
category exceeds the acceptance number for that category, the lot represented by the sample
shall be rejected.
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