Round Plain Nut

NT640A

NT640A
(NSN) National Stock Number
5310-00-208-4275
Federal Supply Classification
5310 Nuts and Washers
Item Name Code
15887
Schedule B Code
7318160000
Summary

2b thread class, right-hand thread direction, 0.031 inches minimum and 0.062 inches maximum drive point depth, round nut style, 0.391 inches minimum and 0.422 inches maximum nut diameter, 0.120 inches minimum and 0.125 inches maximum nut thickness

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
9 - - KZ
Identification

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.)

INC FIIG Concept Condition
15887 A021A0 1 1
Specifications
Thread Class
2b
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Drive Point Depth
0.031 inches minimum and 0.062 inches maximum
Details None.
Nut Style
round
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
Nut Diameter
0.391 inches minimum and 0.422 inches maximum
Details None.
Nut Thickness
0.120 inches minimum and 0.125 inches maximum
Details A measurement between the opposite flat surfaces of the nut,in distinction from length or width.
Drive Point Width
0.047 inches minimum and 0.078 inches maximum
Details None.
Drive Point Quantity
2
Details None.
Thread Series
unf
Details A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
Thread Quantity Per Inch
32
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Nominal Thread Size
0.190 inches
Details A designation that is used for the purpose of general identification of the thread.
Material
steel comp 303 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
aisi assn std single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
passivate overall
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
48950 - W -
RVC WCC TCC SHC
- 573 Z 9

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Manufacturer
BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
CAGE: 80249
GREENLAWN , NY , 11740-1609
UNITED STATES
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FAQs
Frequently asked questions for NSN 5310-00-208-4275
What is the NIIN of the NSN 5310-00-208-4275?
The National Item Identification Number (NIIN) of the NSN 5310-00-208-4275 is 00-208-4275
When the NSN 5310-00-208-4275 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 5310-00-208-4275 contain any precious metals?
Type/content is unknown
Does the NSN 5310-00-208-4275 contain any hazardous material?
No data in HMIRS

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