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 |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
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 |
|---|---|---|
| ACVN | NUT LENGTH | 0.965 INCHES NOMINAL |
| AGGP | DRILLED HOLE DIAMETER | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
| BZRR | THREAD SERIES | UNJS |
| SFTT | SURFACE TREATMENT | PAINT OVERALL EXCEPT THREADS |
| ACTA | NUT STYLE | SLEEVE |
| CQFM | HARDNESS RATING | 34.0 ROCKWELL C MAXIMUM AND 38.0 ROCKWELL C MAXIMUM |
| CRHC | HOLE CONFIGURATION STYLE | CONFIGURATION B |
| AFGG | FLANGE WIDTH ACROSS FLATS | 1.680 INCHES NOMINAL |
| ACTD | NUT DIAMETER | 1.580 INCHES NOMINAL |
| ANLR | CROSS-SECTIONAL SHAPE | ROUND SECOND END |
| ANLR | CROSS-SECTIONAL SHAPE | HEXAGONAL FIRST END |
| AAJF | THREAD DIRECTION | LEFT-HAND |
| ABKU | FLANGE THICKNESS | 0.375 INCHES NOMINAL |
| AAWY | COUNTERBORE DIAMETER | 1.375 INCHES NOMINAL SECOND END |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| ADFK | NUT COUNTERBORE DEPTH | 0.965 INCHES NOMINAL SECOND END |
| AAJD | THREAD CLASS | 3B |
| AZKQ | TEMP RATING | NOT RATED |
| CQJX | NOMINAL THREAD SIZE | 1.250 INCHES |
| MATT | MATERIAL | STEEL COMP E4340 OVERALL |
| ALET | HOLE TYPE AND QUANTITY | 3 DRILLED |
| CMLP | THREAD QUANTITY PER INCH | 32 |