Part Number
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 |
|---|---|
| 01556 | EMHART TEKNOLOGIES LLC DBA EMHART FA |
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 |
|---|---|---|
| BZGJ | INSERT SIZE | 1/4 IN. -28 UNF OR NF CLASS 3A |
| BZYC | TOP UNTHREADED PORTION OUTSIDE DIAMETER | 0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | KEYLOCK |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIK-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| ABRY | LENGTH | 0.250 INCHES NOMINAL |
| BZYH | BOTTOM PORTION UNTHREADED OUTSIDE LENGTH | 0.078 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 303SE OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 316 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| CQJX | NOMINAL THREAD SIZE | 0.164 INCHES |
| BZYD | TOP PORTION UNTHREADED OUTSIDE LENGTH | 0.037 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CBBL | FEATURES PROVIDED | INDIVIDUALLY KEYED |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |