Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , SHOULDER
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO. 10 (0.190 IN.) (5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WITH A THREAD DIAMETER SMALLER THAN NO. 10 (0.190 IN.) (5 MM) AND THOSE ITEMS WITH AN INSERTED DRIVE HEAD, USE SCREW, SHOULDER. FOR ITEMS WHICH ARE NO. 10 (0.190 IN.) (5 MM) OR LARGER IN SIZE AND ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE BOLT, EXTERNALLY RELIEVED BODY. EXCLUDES THUMBSCREW.
CAGE Information
| Code | Company |
|---|---|
| 80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AASA | THREAD LENGTH | 0.362 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.945 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AAJD | THREAD CLASS | 3A |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AATN | SHOULDER DIAMETER | 0.246 INCHES MINIMUM FIRST SHOULDER AND 0.249 INCHES MAXIMUM FIRST SHOULDER |
| AATB | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4037 OVERALL |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| AATX | SHOULDER LENGTH | 1.573 INCHES MINIMUM FIRST SHOULDER AND 1.593 INCHES MAXIMUM FIRST SHOULDER |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |