MIL-PRF-0032482(SH)
3.5 Physical requirements.
3.5.1 Edges. Exposed burrs and raw or sharp edges on QAWTDs and frames that may injure personnel shall be
removed.
3.5.2 Tightness pressure. Tightness pressure, also known as design pressure (see 6.6.1), shall be the minimum
water pressure a QAWTD shall withstand without visible leakage. The tightness pressure shall not be less than the
design head pressure of the structure in which the closure is located. For closures in bulkheads or trunk sides, the
design head of the structure shall be taken at the level of the bottom of the closure.
3.5.3 Proof pressure. Proof pressure (see 6.6.3) shall be tightness pressure multiplied by 150 percent.
3.5.4 Finish. Paint and primer shall be applied in accordance with S9086-VD-STM-010/631. In all cases,
coatings shall be applied after welding has been completed and CRES parts and non-ferrous parts have been
masked.
3.5.5 Identification plate. Each QAWTD shall be supplied with an identification plate affixed to the inside
surface (stiffener side) of the QAWTD panel using 3M VHB Double-Coated Acrylic Foam Tape, or equal. Tape
shall cover the full surface of the label plate. The identification plate shall be 3¼ inches high by 5 inches wide. The
identification plate shall be in accordance with the requirements of MIL-DTL-15024, Type H. Lettering shall be
/32 inch high. Spacing between text lines shall be 7/16 inch. Each identification plate shall list the following
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information:
a.
Specification number.
b.
Part or identifying number (PIN).
c.
Manufacturer name.
d.
Date manufactured.
e.
Drawing number.
3.6 Performance requirements.
3.6.1 Operation. The QAWTD shall be capable of being opened between 90 and 180 degrees (and undogged)
from a closed and dogged position with no perceived binding or force exceeding 50 pounds in accordance with
ASTM F1166.
3.6.2 Hydrostatic pressure. The QAWTD shall be capable of withstanding a hydrostatic pressure of 5, 10, or
15 psi without leakage, as specified (see 6.2). The QAWTD assembly shall be capable of withstanding a hydrostatic
proof pressure without permanent deformation.
3.6.3 Reliability. The QAWTD, with locks or CPS latch assembly removed, shall be capable of withstanding a
minimum of one million cycles (see 4.6.3).
3.6.4 Dogging force. Handle force shall be between 35 and 50 pounds when the QAWTD is dogged and
undogged in accordance with ASTM F1166.
3.6.5 Shock resistance. The QAWTD shall be capable of withstanding a shock event in accordance with
MIL-S-901 for a Grade A, Type A, Class I, nine (9) blow medium weight shock test.
3.6.6 Vibration resistance. The QAWTD shall be capable of withstanding shipboard vibration in accordance
with MIL-STD-167-1 when subjected to vibration throughout the frequency range of 4 to 15 Hertz.
3.6.7 Moisture and water resistance. The QAWTD material shall not degrade when exposed to water or
moisture. Absorbent materials which encourage the growth of mold shall not be used.
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