MIL-DTL-27434B
3.4.1 Terminations. Unless otherwise specified herein, the requirements for the various
terminations of the connector adapters shall conform to the specification specified in table I, as
applicable. The adapters shall be gaged in accordance with 4.4.2.
TABLE I. Requirements for terminations. 1/
Specifications
Termination requirements 2/
MIL-STD-348
MIL-STD-
MIL-STD-
MIL-DTL-
MIL-C-
Mil-STD-
348
348
3643
3650
348
Series C
X
-
-
-
-
-
Contacts
Form-over solder joint
Coupling sleeves 3/
Sleeve bushings
Solder joint
Rotation
Interchangeability (applicable to
male sections of adapters).
Series N
-
X
-
-
-
-
Coupling nuts
Contacts
Series BNC
-
-
X
-
-
-
Coupling sleeves
Contacts
Series HN
-
-
-
X
-
-
Coupling nuts
Contacts
Series LC
-
-
-
-
X
-
Coupling nuts
Contacts
Series twin
-
-
-
-
-
X
Coupling nuts
Contacts
1/ For the purpose of this specification, terminations are defined as the respective portions of the
connector adapter which from the transition from one connector series to another.
2/ For series BN, LN, LT, SM, QDL, QDS, and UHF, see 3.1.
3/ Refers to bayonet-sleeve bushing and plain-sleeve bushing after assembly.
3.4.1.1. Contacts. When tested in accordance with 4.4.3, the contacts shall meet the dimensional
requirements for contacts specified in the specifications specified in table I, as applicable. For series BN,
LN, LT, SM, QDL, QDS, and UHF contacts (see 3.1).
3.4.2 Finish. Unless otherwise specified (see 3.1), all metal parts have a silver plating of not less
than 0.0002 inch (0.005 mm) thick, and of sufficient smoothness and density to withstand the salt-spray
(corrosion) test specified in 4.4.5. Silver plating shall be in accordance with ASTM B700.
Dimensions of metal parts shall include the plating (see 3.1).
3.4.3 Screw threads. Screw threads shall conform to FED-STD-H28, and shall have the specified
fit after plating (see 3.1).
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