031-218-RFX.

BNC Amphenol® BNC 50 ohm Adapters Fig. 2 Fig. 1 a a b b BNC Straight Adapters - Plug/Plug 31-218 31-218-RFX BNC Straight Adapters - Jack/Jack 31-219 31-219-RFX Fig. 3 .500(12.7) Fig. 4 .385(9.8) c a a .453(11.5) .109(2.8) dia. 4 holes .094(10.3) E c b square b e max panel BNC BNC Angle Adapters - Jack/Plug 31-9 31-9-RFX BNC Panel Adapter - Jack/Jack 47000 BNC ADAPTERS - STRAIGHT, ANGLE, PANEL MOUNT Description a Dimensions, inches (millimeters) b c e Straight Jack-Jack 1.28(32.5) .437(11.1) — — Straight Plug-Plug 1.25(31.8) .562(14.3) — — 1.06(27.0) .562(14.3) 1.02(25.8) 1.06(27.0) .562(14.3) 1.09(27.6) 1.28(32.5) Angle Panel, 3-56 Tapped Flange Holes Jack-Plug Jack-Jack Notes Plt. Ins. P1 D1 P7 D26 Mtg. Hole — Military Number UG-914/U — — P1 D1 — UG-491A/U P7 D1 — — — P1 D1 — 1.02(25.8) — P1 D1 — .594(15.1) 1.02(25.8) — P34 D1 — .688(17.5) .691(17.6) P1 D1 E * recognized under the component program of U.L., Inc. .250(6.4) UG-306/U — Amphenol Number 1 31-219-RFX 1 31-218* 2 31-218-RFX 2 31-9*‡ 3 31-9-RFX 3 M55339/14-00306 31-4561 — Fig. 31-219* 47000* 3 4 ▲ distributor stocked ‡ IBM 6028521 Amphenol Corporation Tel: 800-627-7100 www.amphenolrf.com 119 ▲ ▲ ▲ ▲ ▲