1 September 2011
16. Crimp Snap-in Contacts. Snap-in contacts can be
(Figure 6), using holding fixture (Figure 7).
crimped with kit crimp tool M22520/1-01 (Figure 3).
AS39029/76 and AS39029/78 coaxial contacts may be
substituted for vendor contacts covered in this work
17. Contact Insertion. Insertion is accomplished from
package, refer to NAVAIR 01-1A-505-2, WP 003 02
rear of connector. When contact is fully inserted, the
for contact build up.
clip tines snap securely behind contact shoulders.
25. TOOLING. The procedure for attaching power
18. Contact Extraction. Extraction is accomplished
contacts to a single conductor wire are the same for this
with use of a removal tool (Figure 3).
connector series. Select proper tooling (Figure 3) and
refer to NAVAIR 0l-lA-505-1, WP 013 00 for correct
19. Contact Retainer Clip. The contact retaining clip is
assembly and crimp procedures.
completely encased in a tough plastic wafer to protect
the clip from damage.
26. Remove wafer from connector using wafer
removal tool (Figure 5).
20. INSERT CONFIGURATION. The insert
27. Coaxial Cable Stripping.
configuration is the manner in which the contacts are
placed within the connector insert (Figure 3).
a. Determine the proper cable stripping method
(conventional or braid fold-back), based on the
21. CONTACTS. The contacts used in MTC-type
diameter of the cable over the braid (Figure 4). Strip in
connectors are crimp, rear-removable power contacts
accordance with NAVAIR 01-1A-505-1, WP 009.
with pull-thru insertion design.
b. Prepare the coaxial cable to the dimensions
22. POWER CONTACTS. Power contacts are used
shown in the applicable example in figure 8. For RG-
to connect single conductor wire through connectors.
178B/U cable slip D-600-0018 dielectric barrier
The power contacts are size 16 and are crimp rear-
between the shield braid and the cable dielectric.
release design. Contacts are listed by size. Socket and
pin contact part numbers are listed in Figure 3.
c. Straighten the center conductor and make sure
that stranded center conductor is twisted into its
23. COAXIAL CONTACTS. When routing coaxial
cable through connectors, coaxial contacts are superior
to other coaxial cable shield termination methods. The
d. Pre-tin stranded center conductor and un-
shield integrity is maintained across the contact body.
plated solid center conductor
The coaxial cable groups listed (Table 1) can be
interconnected through MTC contact cavities. Socket
e. Make sure that the shield braid is trimmed
and pin contact part numbers are listed in Figure 3.
evenly and that no loose strands are extending out
across the exposed dielectric or cable jacket.
f. Smooth the braid ends flat against the
dielectric or cable jacket.
Coaxial contacts are a copper alloy and may
contain up to 2% Beryllium.
g. If the center-conductor strip length is 0.215
inch as shown in examples B and D of Figure 6, fold
Do not remove outer plating and use caution
the center conductor back on it self as shown in Figure
when handling broken contacts.
24. CABLE AND COAXIAL CONTACT
ASSEMBLY. To assemble coaxial contacts to
applicable cable identify cable by part number. Select
proper tooling by contact part number (Figure 3).
Select strip method (Figure 4). Remove wafer per
paragraph 26 and Figure 5. Assemble contacts shown