MIL-PRF-28876 Connectors, Fiber Optic, Circular, Plug And Receptacle Style, Multiple Removable Termini, General Specification ForThis specification covers the performance requirements for circular, plug and receptacle style, multiple removable termini, fiber optic connectors that are for Department of Defense applications and that are compatible with multiple transmission element cables. Fiber optic connectors specified herein cover a family of general purpose, interconnection hardware providing a variety of compatible optical coupling arrangements. Connector parts specified within this specification include connector shells, connector inserts, connector insert retention nuts, connector backshells, and connector dust caps.

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MIL-PRF-28876E

Notes:

1. Mating cavities to be aligned

and insert faces abutted

when connectors are mated.

2. The following dimensions should be used as a reference:

M29504/1 and /12 pin termini protrude .342 from R.P.1

M29504/14 ceramic tip pin termini protrude .378 from R.P.1

M29504/2 and /13 socket termini with alignment sleeve protrude

.428 from R.P.2

M29504/15 ceramic tip socket termini with alignment sleeve

protrude .423 from R.P.2

Inches

.001

0.03

.137

3.48

.002

0.05

.140

3.56

.003

0.08

.225

5.72

.004

0.10

.342

8.69

.010

0.25

.378

9.60

.097

2.46

.423

10.74

.104

2.64

.428

10.87

.121

3.07

.485

12.32

.125

3.18

.625

15.88

.129

3.28

FIGURE 1.

Termini cavity dimensions.