2530-00-776-2328 SEAT ARM ADJUSTING Index 2530-00-776-2330 PLATE ARM CLAMPING

National Stock Number:
5310-00-776-2329

Federal Supply Class:
5310

National Item Identification Number:
007762329

Description:
NUT,SLEEVE

Detail:
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.


Manufacturer Information:
776232919207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
COUNTERBORE DIAMETER1.266 INCHES MINIMUM AND 1.297 INCHES MAXIMUM NUT
CROSS-SECTIONAL SHAPEHEXAGONAL FLANGE
CROSS-SECTIONAL SHAPEROUND NUT
FLANGE THICKNESS1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM
FLANGE WIDTH ACROSS FLATS2.156 INCHES MINIMUM AND 2.188 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1340 OVERALL
NOMINAL THREAD SIZE1.250 INCHES
NUT DIAMETER1.740 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
NUT COUNTERBORE DEPTH0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM NUT
NUT LENGTH4.297 INCHES MINIMUM AND 4.328 INCHES MAXIMUM
NUT STYLESLEEVE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 1 CLASS 1 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TYPE 2 CLASS 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR ZINC AND CHROMATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM
THREAD SERIESUNF
THREAD QUANTITY PER INCH12


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