Part Number
Definition:
AN INTERNALLY THREADED ITEM WITH A CYLINDRICAL AND/OR SQUARE, HEXAGONAL, OCTAGONAL, OR DODECAGONAL OUTER PERIPHERY (PARALLEL TO THE THREADED AXIS) A PORTION(S) OF WHICH MAY OR MAY NOT BE ENLARGED, FORMING A FLANGE(S) AND/OR SHOULDER(S). ITEMS NOT HAVING AN ENLARGED OUTER PORTION MAY BE THREADED, A PART OF THE FULL LENGTH, OR TAPPED FROM BOTH ENDS. ITEMS HAVING AN ENLARGED OUTER PORTION (FLANGE(S) OR SHOULDER(S)) MAY BE THREADED THE FULL LENGTH, THREADED A PART OF THE FULL LENGTH, OR TAPPED FROM BOTH ENDS. ITEMS TAPPED FROM BOTH ENDS SHALL HAVE EITHER RIGHT-HAND THREADS ON BOTH ENDS OR LEFT-HAND THREADS ON BOTH ENDS. FOR ITEMS CONFORMING TO ANY OF THE ABOVE AND HAVING A LENGTH OVERALL EXCEEDING TWO TIMES THE LARGEST OUTSIDE DIAMETER OR WIDTH ACROSS FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. FOR ITEMS WITH AN OUTSIDE CONTOUR THAT IS THE SAME THE FULL LENGTH, HAVING A CONTINUOUS THREAD THROUGH ITS ENTIRE LENGTH, AND THE LENGTH DOES NOT EXCEED TWO TIMES THE DIAMETER OR WIDTH ACROSS THE FLATS USE NUT (1), PLAIN (AS MODIFIED). EXCLUDES NUT (1), PLAIN, CAP. SEE ALSO TURNBUCKLE BODY.
CAGE Information
| Code | Company |
|---|---|
| 02731 | MCDONNELL DOUGLAS HELICOPTER CO 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 |
|---|---|---|
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| CRHC | HOLE CONFIGURATION STYLE | CONFIGURATION A |
| CMLP | THREAD QUANTITY PER INCH | 8 |
| ACTD | NUT DIAMETER | 0.993 INCHES MINIMUM AND 0.995 INCHES MAXIMUM |
| ACTA | NUT STYLE | SLEEVE |
| ANLR | CROSS-SECTIONAL SHAPE | ROUND OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B144 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| CQFM | HARDNESS RATING | NOT RATED |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| BZRR | THREAD SERIES | ACME |
| AZKQ | TEMP RATING | NOT RATED |
| ACVN | NUT LENGTH | 3.150 INCHES NOMINAL |
| ABKK | FLANGE DIAMETER | 1.500 INCHES NOMINAL |
| ALET | HOLE TYPE AND QUANTITY | 2 DRILLED |
| AAJD | THREAD CLASS | 2B |
| ADFK | NUT COUNTERBORE DEPTH | 0.400 INCHES NOMINAL FIRST END |
| AGGP | DRILLED HOLE DIAMETER | 0.277 INCHES MINIMUM AND 0.288 INCHES MAXIMUM |
| ABKU | FLANGE THICKNESS | 0.500 INCHES NOMINAL |
| MATT | MATERIAL | COPPER ALLOY 932 OVERALL |