NAVAIR 01-1A-505-3
TO 1-1A-14-3
TM 1-1500-323-24-3
005 02
Page 3
1 September 2011
13. Jackscrews or Guide pins. Jackscrews or guide pins
4.
MIL-DTL-28748 CONNECTORS.
are identified by part number and letter code denoting
5. CONNECTOR SHELLS. The connector shells are
type (also Figures 11 and 12).
designed to positively retain insert and so constructed
14. Contacts. Contacts, identified by letter and number
that insert cannot be removed.
denote contact size at 100 percent.
6. COUPLING. Connectors shall be capable of being
15. Contact Options. Contact options identified by letter
fully coupled and uncoupled without use of tools.
and number denote a percentage of various size pins the
7. POLARIZATION. Polarization of the plug with its
insulator can accommodate.
receptacle shall be accomplished by mechanical means
with shells, protective shells, bosses, guide pins, guide
16. DESIGN AND CONSTRUCTION. Connectors are
sockets or jackscrews.
designed and constructed to withstand normal handling
incidental to installation and maintenance. They are
8. PART NUMBER. The following paragraphs
designed so either the plug or receptacle can be the
contain the information necessary for proper selection
mounted connector and one or the other need not have a
and procurement of connector (Figures 2 thru 10).
shell.
NOTE
17. Un-Mounted Connector. The un-mounted connector
will always have a shield and long turnable jackscrews
As all NAVAIR connector and accessory
but will not have a retaining plate. Guidepins are used in
documents are transitioned to non-
place of jackscrews in certain applications (Figure 11).
government standards, (the Society of
Automotive Engineers (SAE), will become
18. Mounted Connector. The mounted connector will
the preparing activity and the Navy will
have a retaining plate, but no shield. A mounted
adopt the documents), the drawing number
connector having a shell will have a short turnable
prefix will change from MS to AS. The main
jackscrew. A mounted connector without a shell will
part number designation remains the same,
have a fixed jackscrew. The jackscrews can be male or
with the "M" prefix, such as M81511/17-08.
female (Figure 12).
At times the entire item may be superseded
by another. There are many cases where
19. INSERTS. Inserts are of diallyl phthalate material
documents have been cancelled without
molded one-piece construction having electrical and
replacements, each case was reviewed and
mechanical characteristics suitable for the purpose
some information has been retained in this
intended. The impact strength shall be such that material
volume "for reference use only".
shall not chip, crack, or break during assembly or normal
9. Specification Sheet Number. The specification sheet
maintenance.
number denotes pin or socket contacts (also Table 1).
20. Crimp Snap-in Contacts. Snap-in contacts designed
10. Insulator. The insulator (insert) is identified by a
to SAE AS39029 can be crimped with standard M22526/
letter code which denotes number of contacts, part
crimp tool.
number and insert configuration (Table 2).
21. Closed-Entry Socket Contacts. These contacts
11. Shield or Retaining Plate. The shield or retaining
eliminate damage from abuse by test probes and help to
plate is identified by a letter or number, denoting
correct any misaligned pins during engagement.
shield/shield clamp location or retaining plate part
22. Contact Insertion. Insertion is accomplished from
number (also Figures 11 and 12).
rear of connector. When contact is fully inserted, the clip
12. Polarizing Shell. The polarizing shell is identified by
tines snap securely behind contact shoulders.
a part number and letter code denoting shell type (also
23. Contact Extraction. Extraction is accomplished with
Figures 11 and 12).
use of a removal tool. Contacts are front release, rear
extraction.
