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National Stock Number:
5310-01-123-8490
Federal Supply Class:
5310
National Item Identification Number:
011238490
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:
| 64356-04051-107 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| THREAD SERIES | UNS | | NOMINAL THREAD SIZE | 2.157 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD PITCH DIAMETERS | 2.1209 TO 2.1260 INCHES | | THREAD DIRECTION | LEFT-HAND | | MATERIAL | STEEL COMP 4130 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND | | 33.0 ROCKWELL C MAXIMUM | | NUT STYLE | ROUND | | SMALL END DIAMETER | 2.475 INCHES MINIMUM AND | | 2.480 INCHES MAXIMUM | | DRIVE POINT DEPTH | 0.086 INCHES MINIMUM AND | | 0.091 INCHES MAXIMUM | | NUT DIAMETER | 2.562 INCHES MINIMUM AND | | 2.572 INCHES MAXIMUM | | NUT THICKNESS | 0.307 INCHES MINIMUM AND | | 0.317 INCHES MAXIMUM | | DRIVE POINT WIDTH | 0.250 INCHES MINIMUM AND | | 0.260 INCHES MAXIMUM | | UNDERCUT THICKNESS | 0.095 INCHES MINIMUM AND | | 0.105 INCHES MAXIMUM | | DRIVE POINT QUANTITY | 8 | | COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | 64356-04051-107 |
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