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National Stock Number:
5310-01-354-8774
Federal Supply Class:
5310
National Item Identification Number:
013548774
Description:
NUT,PLAIN,RECTANGULAR
Detail:
A NUT, FLAT ON TOP AND BOTTOM, HAVING FOUR FLAT SIDES OF WHICH TWO PARALLEL SIDES ARE SHORTER THAN THE OTHER TWO. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)
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Manufacturer Information:
| A51B52591-411 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51B52591-411 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51B52591-411 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL FIRST END | | HARDNESS RATING | 37.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OVERALL | | NOMINAL THREAD SIZE | 0.250 INCHES | | NUT HEIGHT | 0.125 INCHES NOMINAL | | NUT STYLE | PLAIN, RECTANGULAR | | NUT WIDTH | 0.420 INCHES NOMINAL | | NUT LENGTH | 0.540 INCHES NOMINAL | | SPECIAL FEATURES | HOLE IS CSK TO A DIA. OF 0.275 INCHES; ONE CORNER OF NUT IS CHAMFERED 0.160 INCHES BY 45 DEG. | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 1 FED SPEC ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3B | | THREAD SERIES | UNJF | | THREAD QUANTITY PER INCH | 28 |
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