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 |
|---|---|
| 97499 | BELL HELICOPTER TEXTRON INC. |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASU | HEAD HEIGHT | 0.220 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| AASA | THREAD LENGTH | 0.440 INCHES MINIMUM |
| AAJD | THREAD CLASS | 3A |
| AATB | WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL |
| AAXC | CONCENTRIC HOLE DIAMETER | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUB | HOLE DIAMETER | 0.062 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 1212 OVERALL |
| CQFM | HARDNESS RATING | 91.0 ROCKWELL B MINIMUM OVERALL AND 98.0 ROCKWELL B MAXIMUM OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| FEAT | SPECIAL FEATURES | 0.245 IN TO 0.250 IN DIA BY 0.060 IN FILLET RADIUS BY 0.190 IN LG UNDERCUT FOR THD RELIEF |
| AAVH | SHOULDER DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.190 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AAWX | CONCENTRIC HOLE DEPTH | 0.620 INCHES NOMINAL |
| CRHC | HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| BQDM | HOLE TYPE | DRILLED |
| STYL | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
| AAVK | SHOULDER LENGTH | 0.560 INCHES NOMINAL |
| ASXK | HOLE QUANTITY | 6 |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |