Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , MACHINE
Definition:
AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION THROUGH HOLES IN ASSEMBLED PARTS AND NORMALLY INTENDED TO BE TIGHTENED OR RELEASED BY TORQUING A NUT. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF ONE NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. FOR ITEMS HAVING A GRIP LENGTH PORTION MACHINED TO A TOLERANCE OF 0.0015 INCH (0.038 MM) OR LESS, BOLT, SHEAR. SEE ALSO SCREW, CAP, HEXAGON HEAD AND SCREW, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| AASA | THREAD LENGTH | 1.314 INCHES NOMINAL |
| AAUR | GRIP DIAMETER | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM |
| ANEE | GRIP LENGTH | 3.875 INCHES NOMINAL |
| AAJD | THREAD CLASS | 3A |
| AATD | EXTENDED WASHER THICKNESS | 0.178 INCHES NOMINAL |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES NOMINAL FIRST HOLE |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | 5.189 INCHES NOMINAL |
| AATC | EXTENDED WASHER DIAMETER | 1.225 INCHES MINIMUM |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.002 INCHES NOMINAL FIRST HOLE |
| ASXK | HOLE QUANTITY | 1 |
| AATB | WIDTH BETWEEN FLATS | 0.917 INCHES MINIMUM |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AHYM | NOMINAL THREAD DIAMETER | 0.750 INCHES |
| AAUB | HOLE DIAMETER | 0.141 INCHES NOMINAL |
| BQDM | HOLE TYPE | DRILLED |
| AASK | HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| AASU | HEAD HEIGHT | 0.711 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5758 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL OR AMS5844 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL |