Spline Self-Locking Nut

MS51866-1

MS51866-1
(NSN) National Stock Number
5310-01-134-5782
Federal Supply Classification
5310 Nuts and Washers
Item Name Code
15893
Schedule B Code
7318160000
Summary

3b thread class, right-hand thread direction, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature, 0.321 inches minimum and 0.325 inches maximum pilot diameter, 0.110 inches minimum and 0.140 inches maximum pilot length, spline nut style

DAC HCC DMIL RNCC
4 - - 2
RNVC SADC MSDS RNAAC
2 - - KZ
Identification

A nut having an externally splined sleeve, which holds it in position when forced into a hole of slightly smaller diameter. An integral feature is incorporated for locking.

INC FIIG Concept Condition
15893 A021A0 1 1
Specifications
Thread Class
3b
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.
Locking Feature
prevailing torque all metal design or prevailing torque with nonmetallic insert
Details An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
Pilot Diameter
0.321 inches minimum and 0.325 inches maximum
Details The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.
Pilot Length
0.110 inches minimum and 0.140 inches maximum
Details The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.
Nut Style
spline
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.
Nut Diameter
0.423 inches minimum and 0.453 inches maximum
Details None.
Nut Height
0.267 inches minimum and 0.327 inches maximum
Details None.
Temp Rating
250.0 deg fahrenheit maximum
Details A value which expresses the degree of heat or cold as applied to the operation,or limitation of operation,of an item.
Thread Series
unc
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
0.164 inches
Details A designation that is used for the purpose of general identification of the thread.
Special Features
optional hexagon drive type; optional nylon locking insert
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
plastic polyamide locking insert
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel nut
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
mil-n-45913,grb mil spec 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
cadmium overall except insert and chromate overall except insert
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.
Surface Treatment Document And Classification
qq-p-416,type 2,class 3 fed spec single treatment response overall except insert
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
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
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
CAGE: 96906
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FAQs
Frequently asked questions for NSN 5310-01-134-5782
What is the NIIN of the NSN 5310-01-134-5782?
The National Item Identification Number (NIIN) of the NSN 5310-01-134-5782 is 01-134-5782
When the NSN 5310-01-134-5782 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Tue, Jul 6, 1982
Does the NSN 5310-01-134-5782 contain any precious metals?
Does not contain precious metal
Does the NSN 5310-01-134-5782 contain any hazardous material?
No data in HMIRS

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