Part Number
Definition:
A NUT, FLAT ON TOP AND BOTTOM HAVING 6 FLAT SIDES. FOR ITEMS WHICH HAVE INTERNAL TAPERED OR STRAIGHT (PARALLEL) PIPE THREADS, SPECIFIC ELECTRICAL CONDUIT SIZE DESIGNATION, AND WHICH WHEN INSTALLED, PROVIDE A METHOD OF TIGHTENING TO LOCK THE CONNECTION, SEE LOCKNUT, ELECTRICAL CONDUIT. SEE ALSO LOCKNUT, TUBE FITTING. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH ACROSS THE FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH ACROSS THE FLATS IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)
CAGE Information
| Code | Company |
|---|---|
| 3X894 | CONTROL FLOW INC. DBA WESTECH HEAVY |
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 |
|---|---|---|
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| ADEA | NUT HEIGHT | 0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY 2,CL FE/ZN13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| CRTM | BEARING SURFACE TYPE | WASHER FACED |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| AAJD | THREAD CLASS | 3B |
| AZKQ | TEMP RATING | NOT RATED |
| ASDB | WIDTH ACROSS FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| ACTA | NUT STYLE | HEXAGON |
| BZRR | THREAD SERIES | UNC |
| FEAT | SPECIAL FEATURES | ASTM A307 |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| MATT | MATERIAL | STEEL COMP 1015 OVERALL OR STEEL COMP 1040 OVERALL OR STEEL COMP 1039 OVERALL OR STEEL COMP 1016 OVERALL OR STEEL COMP 1017 OVERALL OR STEEL COMP 1023 OVERALL OR STEEL COMP 1524 OVERALL OR STEEL COMP 1025 OVERALL OR STEEL COMP 1030 OVERALL OR STEEL COMP 1033 OVERALL OR STEEL COMP 1536 OVERALL OR STEEL COMP 1037 OVERALL OR STEEL COMP 1038 OVERALL OR STEEL COMP 1022 OVERALL OR STEEL COMP 1034 OVERALL OR STEEL COMP 1019 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1035 OVERALL OR STEEL COMP 1013 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1541 OVERALL |
| CQFM | HARDNESS RATING | 23.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND A STYLE |