MIL-DTL 26482 Type 257-135 MIL-DTL-26482 Series II Type Hermetic Bayonet Coupling Jam Nut Mount Pin-Pin Bulkhead Feedthrough Receptacle Insert Arrangement Per MIL-STD-1669 Connector Style 135 = Jam-Nut Mount Pin-Pin Feedthrough Receptacle 257 - 135 Series 257 MIL-DTL-26482 Type Z1 24 - 61 Shell Size Material/Finish Z1 = CRES/Nickel Plated G .125 Max 1.290 Max D H .400 Max D C B .405/.395 A Thread Holes For .020 Max Dia Safety Wire 3 Equally Spaced .500 Max Panel Thickness APPLICATION NOTES 1. To be identified with manufacturer’s name, part number and date code, space permitting. 2. Electrical safety limits must be established by the user. Peak voltage, switching surge, transient, etc. should be used to determine the safety of the application. 3. Metric Dimensions (mm) are indicated in parentheses. © 2009 Glenair, Inc. 4. Material/Finish: Shell and jam-nut: Z1 - CRES/nickel plated. Titanium and Inconel® available. Consult factory. Contacts - Alloy 52/gold plate. Bayonets - CRES/passivated. Seals - Fluorosilicone/N.A. Spacer - High grade rigid dielectric/N.A. CAGE CODE 06324 Printed in U.S.A. GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX 818-500-9912 www.glenair.com D-30 E-Mail: [email protected] MIL-DTL 26482 Type 257-135 MIL-DTL-26482 Series II Type Hermetic Bayonet Coupling Jam Nut Mount Pin-Pin Bulkhead Feedthrough Receptacle E F RECOMMENDED PANEL CUT-OUT HERMETIC LEAK RATE MOD CODES Designator D Required Leak Rate –585A 1 x 10-10 cc’s Helium per second –585B 1 x 10-9 cc’s Helium per second –585C 1 x 10-8 cc’s Helium per second TABLE I: CONNECTOR AND CUT-OUT DIMENSIONS (Continued Below) Shell Size A Thread Class 2A B Dia Max C Hex D Flats E Dia +.010 -.005 (+0.3 -0.1) F Dia +.010 -.005 (+0.3 -0.1) G Max H Dia ± .016 (0.4) 8 9/16-24 UNEF .474 (12.0) .750 (19.1) .938 (23.8) .572 (14.5) .540 (13.7) 2.125 (54.0) 1.062 (27.0) 10 11/16-24 UNEF .591 (15.0) .875 (22.2) 1.062 (27.0) .697 (17.7) .665 (16.9) 2.125 (54.0) 1.187 (30.1) 12 7/8-20 UNEF .751 (19.1) 1.062 (27.0) 1.250 (31.8) .895 (22.7) .828 (21.0) 2.125 (54.0) 1.375 (34.9) 14 1-20 UNEF .876 (22.3) 1.188 (30.2) 1.375 (34.9) 1.010 (25.7) .952 (24.2) 2.125 (54.0) 1.500 (38.1) 16 1 1/8-18 UNEF 1.001 (25.4) 1.312 (33.3) 1.500 (38.1) 1.135 (28.8) 1.076 (27.3) 2.125 (54.0) 1.625 (41.3) 18 1 1/4-18 UNEF 1.126 (28.6) 1.438 (37.0) 1.625 (41.3) 1.260 (32.0) 1.201 (30.5) 2.125 (54.0) 1.750 (44.5) 20 1 3/8-18 UNEF 1.251 (31.8) 1.562 (39.7) 1.812 (46.0) 1.385 (35.2) 1.326 (33.7) 2.125 (54.0) 1.938 (49.2) 22 1 1/2-18 UNEF 1.376 (35.0) 1.688 (42.9) 1.938 (49.2) 1.510 (13.0) 1.451 (36.9) 2.125 (54.0) 2.062 (52.4) 24 1 5/8-18 UNEF 1.501 (38.1) 1.812 (46.0) 2.062 (52.4) 1.635 (41.5) 1.576 (40.0) 2.125 (54.0) 2.187 (55.5) © 2009 Glenair, Inc. CAGE CODE 06324 Printed in U.S.A. GLENAIR, INC. • 1211 AIR WAY • GLENDALE, CA 91201-2497 • 818-247-6000 • FAX 818-500-9912 www.glenair.com D-31 E-Mail: [email protected]