Part Number
Definition:
A NUT, CIRCULAR IN SHAPE, WHICH MAY HAVE WRENCHING FACILITIES SUCH AS FLATS, HOLES, PROTRUSIONS, SLOTS OR SPLINES IN OR ON THE PERIPHERY OR IN THE FACE OPPOSITE THE BEARING SURFACE. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE OUTSIDE DIAMETER, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. SEE ALSO NUT (1), PLAIN, KNURLED. (WHEN HEIGHT OR THICKNESS AND/OR OUTSIDE DIAMETER IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)
CAGE Information
| Code | Company |
|---|---|
| 97499 | BELL HELICOPTER TEXTRON INC. |
Federal Supply Class
Title
NUTS AND WASHERS
Inclusions:
INCLUDES LOCKNUTS; EYE NUTS; PLAIN NUTS; CASTELLATED NUTS; WING NUTS; PLATE NUTS; PUSH ON NUTS; CONCAVE AND CONVEX WASHERS; FLAT WASHERS; KEYED WASHERS; LOCK WASHERS; SHOULDERED WASHERS; SPLIT WASHERS.
Exclusions:
EXCLUDES BEARING THRUST WASHERS (FSC 3120); SHIMS (FSC 5365); RING SPACERS (FSC 5365); PLATE SPACERS (FSC 5365); LOCK RINGS (FSC 5365).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ADBM | DRIVE POINT QUANTITY | 18 |
| AAWY | COUNTERBORE DIAMETER | 0.430 INCHES NOMINAL NUT |
| CQFM | HARDNESS RATING | NOT RATED |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BPS FW4007,FSCM 97499 MFR REF SINGLE TREATMENT RESPONSE OVERALL EXCEPT THREADS OR QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT THREADS |
| ADBG | NUT THICKNESS | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | LEFT-HAND |
| AFGF | DRIVE POINT DIAMETER | 0.338 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |
| AZKQ | TEMP RATING | NOT RATED |
| TEST | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION AND 97499-BPS 4075 SPECIFICATION |
| CQJX | NOMINAL THREAD SIZE | 4.250 INCHES |
| ABQU | DRIVE POINT DEPTH | 0.1042 INCHES MINIMUM AND 0.1107 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 416 OVERALL OR STEEL COMP 4130 OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| BZRR | THREAD SERIES | UN |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL EXCEPT THREADS OR CADMIUM OVERALL EXCEPT THREADS |
| ACTA | NUT STYLE | ROUND |
| ACTD | NUT DIAMETER | 4.4985 INCHES MINIMUM AND 4.5015 INCHES MAXIMUM |
| ADFK | NUT COUNTERBORE DEPTH | 4.280 INCHES MINIMUM NUT AND 4.290 INCHES MAXIMUM NUT |
| FEAT | SPECIAL FEATURES | DONT CADMIUM TREAT QQ-S-763 STEEL,MARK /LH THD/ 3 PLACES ON OD,0D 63 MICROINCHES MAX,ID 125 MICROINCHES MAX |
| AAJD | THREAD CLASS | 2B |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL OR AMS6371 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |