MIL-DTL-25995D
3.4.4 Lengths. The lengths shall be as specified on the order with a tolerance of ± .5 inch (12.70
mm).
3.4.5 Allowable deviation from mean diameter. The allowable deviation from mean diameter of the
pipe shall be in accordance with ANSI H35.2
3.4.6 Allowable deviation of diameter. Allowable deviation of diameter shall be in accordance with
ANSI H35.2
3.5 Performance.
3.5.1 Leak test. Each length of pipe, for pressure applications, shall be hydrostatically tested in
accordance with ASTM B210.
3.6 Marking. Marking shall consist of the PIN, Manufacturers Commercial and Government Entity
(CAGE), alloy, and lot date code. Marking shall be done every 3 feet (0.91 m) and shall be permanently
and legibly marked on the pipe. The lot date code may be marked on a single place on the pipe. Alloy
and temper designations shall be in accordance with ANSI H35.1.
3.7 Workmanship. The pipe shall be uniform in quality and temper. The exterior and interior
surfaces shall be clean, smooth, and free from slivers, laminations, folds, grooves, cracks, and other
defects within the limits consistent with best commercial practice. Discoloration due to thermal treatment
is acceptable.
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