MIL-TYPE 1/4" PHONE PLUGS

1. 2-CONDUCTOR SERIES 420, 425
2. 3-CONDUCTOR SERIES 482, 483
3. 2-CONDUCTOR SERIES 430
4. 3-CONDUCTOR SERIES 480 (.206")
5. 2-CONDUCTOR SERIES 440, 445
6. 3-CONDUCTOR SERIES 484 (.206")

FEATURES

Designed for high quality communication equipment to meet military requirements, This series features one-piece tip rod and one-piece sleeve and plug body, assembled together into a mold as inserts, providing a finished plug with complete continuity of thermoplastic insulation between tip rod and plug sleeve. Internal (invisible externally) interlock mechanically engages the metal and plastic components providing a realistic lock to prevent parts shifting. Design and material in accordance with MIL-P-642(A), MIL part number molded or stamped on handle, manufacturer's trademark (as required by MIL specification) appears on plug body.

SPECIFICATIONS

Tip Rod, Body and Screws: Copper alloy, natural finish.

Terminals: Tinned copper alloy.

Insulation: Thermoplastic, per MIL-P-22985, Type II, Class 1.

Handles: Thermoplastic, Type 6, per MIL-M-20693, Type II. Shielded; machined from copper alloy, nickel-plated.

STRAIN RELIEF CLAMP

For MIL-type Littel-Plug phone plugs. P2380 conforms to Specification SC-A-7674-F - supplied with Plug Numbers 430, 440, 445 and 470. P2381 meets Specification MS-35762 - supplied with Plug Number 480 and Extension-Jax® phone jack, Number 820.

ORDERING INFORMATION

Part Number1	Conductors	Terminals	Typical Mating Jack	Handle	Handle Part Number	MIL Part Number	Notes
420	2	Screw3	MT331	Black4	ý T16762	M642/1-1	Old PJ-047B or Signal Corps PL-47. Similar to WECo-347D.
425	2	Screw3	MT331	Red4	T16761	M642/1-2	Old PJ-047R or Signal Corps
430	2	Screw3, 6	820	Black	M10252	M642/3-1	Old PJ-054B or Signal Corps PL-354. Dimemsion "A" - .25 inches (See Drawing).
440	2	Screw3, 6	MT331	Black	M1012	M642/4-1	Old PJ-055B or Signal Corps PL-55.
445	2	Screw3, 6	MT331	Red	M-1013	M642/4-2	Old PJ-055R.
470	2	Screw3, 6	MT331	Shielded	T125313	M642/4-3	Old PJ-055M or Signal Corps PL-125.
480	3	Screw3, 6	MT342B	Black	M10271	M642/5-1	Old PJ-068 or Signal Corps PL-68. Finger diameter .206 inches.
484	3	Screw3	MT342B	Red5	T1992	M642/8-1	Old PJ-309 or JJ-083. Finger diameter .206 inches. Similiar to WECo-309.
1 Internal threads in the ends of Numbers 420, 425, 482 and 483 Littel-Plug phone plugs are intended for engagement by threading over the outer jacket of patch cord to provide cable anchor. 2 Switchcraft Part Numbers. See the jacks section for additional mating jacks. 3 Switchcraft replacement screw P1070, Terminal Number P10695. Two each required per plug except 3 each for Number 480. 4 Switchcraft replacement screw T1677. One screw required to mount handle. 5 Switchcraft replacement screw T1990. One screw required to mount handle. 6 Strain Relief "U" Clamp is separate part. * Also available as nickel-plated. Specify 482N, 483N. Special order only. Contact Switchcraft

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