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National Stock Number:
5310-00-949-3669
Federal Supply Class:
5310
National Item Identification Number:
009493669
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:
| 65351-11189-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| THREAD SERIES | UN | | NOMINAL THREAD SIZE | 3.125 INCHES | | THREAD QUANTITY PER INCH | 12 | | 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 | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 33.0 ROCKWELL C MAXIMUM | | NUT STYLE | ROUND | | DRIVE POINT DEPTH | 0.165 INCHES NOMINAL | | NUT DIAMETER | 3.500 INCHES NOMINAL | | NUT THICKNESS | 0.562 INCHES NOMINAL | | DRIVE POINT WIDTH | 0.210 INCHES MINIMUM AND | | 0.215 INCHES MAXIMUM | | DRIVE POINT QUANTITY | 18 | | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | 65351-11189-101 |
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