FF-P-110 Padlock, Changeable Combination \(Resistant To Opening By Manipulation And Surreptitious Attack\)This specification covers changeable combination padlocks designed to conform to the standards for security equipment as set forth in the "National Security Council Directive Governing the Classification, Downgrading, Declassification and Safeguarding of National Security Information". The padlocks are required to resist opening by manipulation and surreptitious techniques for the period of time specified. The padlocks are intended for use as indicated in 6.1. The padlocks are not tested for forced opening.

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FF-P-110J

3.13.1 Back. The padlock shall be legibly marked on the back with the letters "U.S.," the

manufacturer's name or Commercial and Government Entity (CAGE) code, the model number,

and the classification, as follows:

For class 1 padlocks:

For class 2 padlocks:

CL 1

CL 2

FF-P-110

Date: (year)

3.13.1.1 Method of marking. Markings specified in 3.13.1 shall be either embossed to a height of

approximately 0.018-inch (0.4572 mm) or engraved to a depth of not less than 0.005-inch

(0.127 mm).

3.13.2 Shackle marking. Each padlock shackle shall be identifiable by serialization of the lock

shackle and the lock case cover as specified.

3.13.2.1 Shackle serial number. The series number identifying the shackle shall be randomly

different from and have no association to the lock case cover series number. The number shall be

stamped on so that it is concealed when the shackle is in the locked position. The series number

shall be stamped on the shackle with a die in the range of 0.09375- through 0.130-inch (2.381 mm

through 3.302 mm) prior to the case hardening process.

3.13.2.2 Case cover serial number. The series number identifying the case cover shall be

randomly different from and have no association to the lock shackle number. The number shall

appear on one side of the case cover and shall be stamped on with a die in the range of

0.09375- through 0.130-inch (2.381 mm through 3.302 mm) prior to the finish process.

3.14 Instructions. Manufacturer's instructions normally furnished in commercial practice,

describing how to run the combination and how to change the combination shall be furnished with

each padlock.

3.15 Workmanship. The finished padlock shall be of substantial construction designed to

withstand severe usage. Working parts shall be accurately fitted. No part shall be broken, split,

fractured, or cracked. All parts shall be well finished, free from burrs, splinters, or rough edges,

true to form, and free from any defects which may affect appearance, operation, or serviceability

of the padlock, and shall operate as intended.