FF-S-2738A
3.5.6.1 Physical requirements. All padlock seals shall have both pieces marked in accordance
with 3.6.
3.5.6.2 Resistance to tampering. The seal shall resist tampering for a period of at least 15
seconds (see 3.5.5.2).
3.5.7 Style C - Strap, type 7 - car/box end. The car/box end seals are steel strap or aluminum
strap seals with a comparable metal box as specified (see 6.2). This seal employs a strap which
passes through a staple to secure a hasp. One end of the strap is folded and crimped to form a
box which contains a capture mechanism. The other end, when inserted into the box is captured
forming a seal.
3.5.7.1 Physical requirements. The car/box end seal shall consist of a metal strap not less than 6
inches long and not less than 0.3 inches wide and a comparable metal box. The seal strap shall be
marked in accordance with 3.6.
3.5.7.2 Resistance to tampering. The seal shall resist tampering for a period of at least 30 seconds
(see 3.4.1).
3.5.8 Style C - strap, type 8 - car/plastic. This seal is a plastic version of the type 7 and 8 car
seal. One end of the strap locks into a plastic capture device, molded on the other end of the
strap.
3.5.8.1 Physical requirements. The car/plastic seal shall consist of a thermosetting plastic strip
not less than 6 inches long and not less than 0.3 inches wide. The seal shall be marked in
accordance with 3.6.
3.5.8.2 Resistance to tampering. The seal shall resist tampering for a period of at least 15
seconds (see 3.4).
3.5.9 Style C - strap, type 9 - car/ball end. The car/ball end seals are steel strap or aluminum
strap seals with a comparable metal ball as specified (see 6.2). The latching mechanism is two or
more piano-wire loops which capture both ends of the strap within the ball, when sealed.
3.5.9.1 Physical requirements. The car/ball end seal shall consist of a metal strap not less than 6
inches long and not less than 0.3 inches wide and comparable metal ball. The seal shall be marked
in accordance with 3.6.
3.5.9.2 Resistance to tampering. The seal shall resist tampering for a period of at least 30
seconds (see 3.4).
3.5.10 Style C strap, type 10 crimp, special marking. Strap seals are standard steel strapping
closures with a controlled lithographic design and with special marking.
3.5.10.1 Physical requirements. Strap seals shall conform to QQ-S-781. Lithography and marking
shall be as specified (see 6.2).
3.5.10.2 Resistance to tampering. The seal shall resist tampering for a period of at least 5 minutes.
3.5.11 Style D - cable, type 11 - one piece. These cable seals are high strength seals using
0.1875 or 0.25 inch diameter aircraft cable which either has a swaged capture device at one end
or both ends. When at only one end, the device captures the inserted cable directly and can be
cinched up on the staple or hasp. If at both ends , then one end is a male which fits into the other
end's swaged female fitting.
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