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National Stock Number:
5310-00-220-2521
Federal Supply Class:
5310
National Item Identification Number:
002202521
Description:
NUT,PLAIN,ROUND
Detail:
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.)
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Manufacturer Information:
| 65370-04140-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| THREAD SERIES | UNEF | | NOMINAL THREAD SIZE | 1.375 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | MATERIAL | STEEL COMP 4130 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS8416 FSCM 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 33.0 ROCKWELL C MAXIMUM | | NUT STYLE | ROUND | | SMALL END DIAMETER | 1.656 INCHES NOMINAL | | DRIVE POINT DEPTH | 0.187 INCHES NOMINAL | | NUT DIAMETER | 1.906 INCHES NOMINAL | | NUT THICKNESS | 0.312 INCHES NOMINAL | | DRIVE POINT WIDTH | 0.188 INCHES NOMINAL | | UNDERCUT THICKNESS | 0.125 INCHES NOMINAL | | DRIVE POINT QUANTITY | 8 | | HOLE CONFIGURATION STYLE | CONFIGURATION F | | HOLE TYPE AND QUANTITY | 8 DRILLED | | DRILLED HOLE DIAMETER | 0.094 INCHES NOMINAL | | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | 65370-04140-102 |
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