FF-S-2738A
3.5.11.1 Physical requirements. As specified (see 6.2) the cable shall be a minimum of 0.188 or
0.250 inch diameter of galvanized steel for pull through seals. The cable shall be a minimum of 8
inches long from the locking mechanism to the end of the cable.
3.5.10.2 Resistance to tampering. The seal shall resist tampering for a period of at least 30
seconds (see 3.4).
3.5.12 Style D - cable, type 12 - two piece. The two piece seal consists of a piece of steel cable
to which a separate locking mechanism is connected at the time of sealing. The attachment of the
locking mechanism may be either to the cable or to an attached locking point on the cable.
3.5.12.1 Physical requirements. As specified (see 6.2), the cable shall be a of minimum 0.188 or
0.250 inch diameter galvanized steel. Both pieces of a two piece seal shall be marked in
accordance with 3.6.
3.5.12.2 Resistance to tampering. The seal shall resist tampering for a period of at least 30
seconds (see 3.4).
3.5.13 Style E - bolt.
3.5.13.1 Type 13 - unthreaded. The unthreaded bolt seals shall consist of an unthreaded pin and
locking cylinder. When the pin is inserted in the cylinder, a notch on the pin shall be captured by a
locking ring, locking the seal.
3.5.13.2 Physical requirements. Both pieces of the bolt seal shall be marked in accordance with
3.7 if the locking end is reusable.
3.5.13.3 Resistance to tampering. The seal shall resist tampering for a period of at least 30
seconds (see 3.4).
3.5.14 Style F - pull-tight (cinch), type 14 - plastic tie. This one piece plastic seal consists of two
parts, a string or slender strap that is connected to a capture device at one end. The free end is
inserted through the capture device and cinched. Spring fingers grasp the serrated string and
prevent its removal.
3.5.14.1 Physical requirements. The plastic tie seal shall be marked in accordance with 3.6.
3.5.14.2 Resistance to tampering. The seal shall resist tampering for a period of at least 30
seconds (see 3.4).
3.6 Marking. All seals shall be marked with letters and numerals as specified herein and in
accordance with manufacturers standard practice (see 6.2).
3.6.1 Letters. Unless otherwise specified, the seals shall be marked with the letters "US" and
agency initials specified by the ordering agency (see 6.2).
3.6.2 Serial numbers. All seals shall be marked with consecutive serial numbers excluding any
duplication of serial numbers. Serial numbers should be specified by the ordering agency. Alpha
numeric serial numbers are permitted unless specifically prohibited (see 6.2).
3.6.3 Marking location. All marked seals shall be marked on the main body of the seal. Seals
constructed in more than one piece shall have the same serial number marked on each piece
except for the wire used in types 1, 2, 3, and 4 or break-off type set screws used in types 6, 11,
12, and 13. Any part(s) that can be reused after removal shall also be marked.
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