S:\part\s2\25\257-4451OF2.prt
257-445
PART NUMBER DEVELOPMENT
EXAMPLE:
BASIC NO
FINISH
M = ELECTROLESS NICKEL
NF = OLIVE DRAB CADMIUM
OVER NICKEL
SHELL SIZE/ARRANGEMENT
(SEE TABLE II)
257-445 M 11-4 P N
THIS COPYRIGHTED DOCUMENT IS THE PROPERTY OF GLENAIR, INC. AND IS FURNISHED ON THE CONDITION THAT IT IS NOT TO
BE DISCLOSED, REPRODUCED IN WHOLE OR IN PART, OR USED TO SOLICIT QUOTATIONS FROM COMPETITIVE SOURCES, OR USED
FOR MANUFACTURE BY ANYONE OTHER THAN GLENAIR, INC. WITHOUT WRITTEN PERMISSION FROM GLENAIR, INC. THE INFORMATION
HEREIN HAS BEEN DEVELOPED AT GLENAIR'S EXPENSE AND MAY BE USED FOR ENGINEERING EVALUATION AND INCORPORATION
INTO TECHNICAL SPECIFICATIONS AND OTHER DOCUMENTS WHICH SPECIFY PROCUREMENT OF PRODUCTS FROM GLENAIR, INC.
REVISIONS
SYM.
A
B
C
D
DESCRIPTION
PRODUCTION RELEASED
REVISED PER DCN 27984
REVISED PER DCN 28582
REVISED PER DCN 30506
DATE
APPROVED
GSB
09/21/06
F.Q.
08/06/07
J.L.
11/30/07
J.L.
09/29/08
.235 MAX
CONTACT STYLE
P = PIN, PC TAIL
S = SOCKET, PC TAIL
POLARIZATION PER MIL-DTL-38999
.175
.125
A THREAD
.843 MAX
2X D
.102
.075
4X CHAMFERED
OR ROUNDED
CLINCH NUT
REF
POTTING COMPOUND
1
2
5
2
B SQ
2X C
BSC
4
3
F
.189
TYP
PCB STANDOFF
.520 MAX
FULLY MATED
INDICATOR
BAND-RED
4X M3X0.5-6G HOLES
.156 DEEP @90° APART
4X M3X0.5-6G
.005 M
CLINCH NUT
4 PLACES
5 INSERT ARRANGEMENT SHOWN FOR REFERENCE ONLY.
4. MATERIAL/FINISH:
SHELL - AL ALLOY/ SEE PART NO. DEVELOPMENT
CONTACTS - COPPER ALLOY/GOLD PLATED
INSULATOR - HIGH GRADE RIGID DIELECTRIC/N.A.
POTTING - EPOXY
UNLESS OTHERWISE SPECIFIED
3. GLENAIR 257-445 RECEPTACLE CONNECTOR IS DESIGNED TO MATE WITH ANY
QPL MANUFACTURER'S MIL-C-38999 SERIES III PLUG CONNECTOR HAVING
THE SAME INSERT ARRANGEMENT AND POLARIZATION.
2 INSERT ARRANGEMENTS IN ACCORDANCE WITH MIL-STD-1560, SEE TABLE II.
1. ASSEMBLY IDENTIFIED WITH GLENAIR'S NAME, PART NO
AND DATE CODE
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONS
DECIMALS
ANGLES
+ 1/16
-
+.03
.XX
-
.XXX +.015
-
+ 2
-
DRAWN CI
CHECK GSB
ENGR CI
02/06/06
02/06/06
02/06/06
C
CAD 1996
1211 AIR WAY - GLENDALE - CALIFORNIA 91201
APPROVED
CONNECTOR, RECEPTACLE
SERIES III, BOX MOUNT
THREADED FLANGE, PC TAILS
CODE IDENT. NO. SIZE
APPROVED
RELEASE DATE
ORIGINAL
RELEASE DATE
NOTES: UNLESS OTHERWISE SPECIFIED
DO NOT SCALE THIS DRAWING
06324
SCALE
N/A
C
257-445
D
N/A
SHEET
1 OF 2
REV.
B/F
6580
P/C
25
NON REPARABLE COMMERCIAL ITEM
WEIGHT
1 of 1