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National Stock Number:
5310-00-638-1148
Federal Supply Class:
5310
National Item Identification Number:
006381148
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:
| S1640-61212 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| COUNTERBORE DIAMETER | 1.450 INCHES MINIMUM AND 1.470 INCHES MAXIMUM NUT | | COUNTERSINK ANGLE | 109.5 DEGREES MINIMUM AND 110.5 DEGREES MAXIMUM NUT | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL THREAD SIZE | 1.375 INCHES | | NUT COUNTERBORE DEPTH | 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM NUT | | NUT DIAMETER | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM | | NUT STYLE | ROUND | | NUT THICKNESS | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM | | WIDTH ACROSS FLATS | 1.531 INCHES MINIMUM AND 1.594 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 12 | | THREAD SERIES | UNF |
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