Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , INTERNALLY RELIEVED BODY
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE EXTERNAL THREADED PORTION IS OF ONE NOMINAL DIAMETER. IT HAS A CONCENTRIC HOLE ALONG THE LONGITUDINAL CENTERLINE WHICH MAY EXTEND A PART OR THE FULL LENGTH OF THE BOLT. THE CONCENTRIC HOLE ALONG THE CENTERLINE MAY BE COUNTERBORED AND/OR INTERNALLY THREADED AT THE HEAD END OR THE BOLT END. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN BY AN EXTERNAL AND/OR INTERNAL DRIVER. FOR ITEMS HAVING A HOLE(S) PERPENDICULAR TO THE AXIS WHICH MEET THE CONCENTRIC HOLE ALONG THE LONGITUDINAL CENTERLINE, SEE BOLT, FLUID PASSAGE.
CAGE Information
| Code | Company |
|---|---|
| 81205 | THE BOEING COMPANY DBA BOEING DIV DE |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 1.937 INCHES |
| AAXC | CONCENTRIC HOLE DIAMETER | 1.250 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| CQBC | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| AAVH | SHOULDER DIAMETER | 1.998 INCHES NOMINAL |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.172 INCHES NOMINAL FIRST HOLE |
| AASL | HEAD DIAMETER | 2.520 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UN |
| AATB | WIDTH BETWEEN FLATS | 2.200 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 9.520 INCHES NOMINAL FIRST HOLE |
| AASB | FASTENER LENGTH | 10.180 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.940 INCHES MINIMUM |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | ROUND W/WRENCH FLATS |
| STYL | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
| CQFM | HARDNESS RATING | 40.0 ROCKWELL B MAXIMUM OVERALL AND 43.0 ROCKWELL B MAXIMUM OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| AAVK | SHOULDER LENGTH | 8.980 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.380 INCHES NOMINAL |