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Part Number

Part Number:
NSN:
NIIN:
Item Name:
INSERT , SCREW THREAD

Definition:

A CYLINDRICAL ITEM WHICH MAY HAVE WRENCHING AND/OR DRIVING FACILITIES AND/OR SHOULDERS. IT IS DESIGNED TO BE INSERTED IN A DRILLED OR A PRETAPPED HOLE, OR MOLDED OR PRESSED INTO SOFT MATERIAL TO REDUCE THE SIZE OF A TAPPED HOLE; TO PROVIDE THREADS; TO ADD STRENGTH, AND/OR TO PREVENT STRIPPING. IT IS ONE OF THE FOLLOWING: (1) A ONE-PIECE, FLANGED OR UNFLANGED, INTERNALLY THREADED ITEM WHICH MAY HAVE EXTERNAL THREADS, AND/OR SERRATIONS AROUND THE PERIPHERY OF THE COLLAR, DESIGNED TO ENGAGE A SERRATED LOCK RING WHICH IS NOT INCLUDED WITH THE ITEM; (2) A ONE-PIECE PRECISION COILED WIRE; (3) A TWO-PIECE ITEM CONSISTING OF AN INTERNALLY THREADED CYLINDER AND A MATING EXTERNALLY THREADED PART; OR (4) A ONE-PIECE INTERNALLY THREADED ITEM WHOSE OUTSIDE DIAMETER IS TAPERED AND/OR KNURLED AND/OR WITH FIN(S). THE INTERNAL THREAD OF THE ITEM MAY HAVE A LOCKING FEATURE. EXCLUDES ITEMS HAVING A SLEEVE ON ITS UNDERPORTION WHICH CAN BE CLINCHED OR CRIMPED. EXCLUDES BUSHING, MACHINE THREAD; NUT, PLAIN, KNURLED; NUT, PLAIN, ROUND; NUT, PLAIN, CLINCH AND NUT, SELF-LOCKING, CLINCH. SEE ALSO NUT, PLAIN, PLATE.

CAGE Information

Code Company
29372 ALCOA GLOBAL FASTENERS INC. DBA ALCO

Federal Supply Class

Title

FASTENING DEVICES

Inclusions:

INCLUDES EYELETS; GROMMETS; AIRCRAFT COWLING FASTENERS; TEXTILE FASTENERS; RETAINING RINGS; THREADED INSERTS.

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
BZYF INTERNAL THREAD RELIEF DEPTH 0.070 INCHES NOMINAL
CQJX NOMINAL THREAD SIZE 0.250 INCHES
BZYG FULL INTERNAL THREAD LENGTH 0.300 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THSD THREAD SERIES DESIGNATOR UNJF
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 28
STYL STYLE DESIGNATOR KEYLOCK
ABRY LENGTH 0.370 INCHES NOMINAL
BZGJ INSERT SIZE 0.375-16 UNC CLASS 2A
MATT MATERIAL IRON ALLOY 660 OVERALL
AAJD THREAD CLASS 3B
ZZZK SPECIFICATION/STANDARD DATA 80205-NAS1394 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SFTT SURFACE TREATMENT SILVER OVERALL

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