Spline Self-Locking Nut
MS51866-18
(NSN) National Stock Number
5310-01-069-6345
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 with nonmetallic insert or prevailing torque all metal design locking feature, 0.384 inches minimum and 0.388 inches maximum pilot diameter, 0.173 inches minimum and 0.203 inches maximum pilot length, 0.346 inches minimum and 0.406 inches maximum nut height
| 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 with nonmetallic insert or prevailing torque all metal design
Details
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.Pilot Diameter
0.384 inches minimum and 0.388 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
0.173 inches minimum and 0.203 inches maximum
Details
The length of the pilot,which is the unthreaded portion beyond the thread used to guide the item.Nut Height
0.346 inches minimum and 0.406 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
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
28
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Nominal Thread Size
0.250 inches
Details
A designation that is used for the purpose of general identification of the thread.Material
steel corrosion resisting nut
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.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 all treatment responses 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 | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 48950 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 573 | Z | 9 |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- Genuine Manufacturers Parts
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- 7 Year Sales Record Retention
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- HAZMAT Certified
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Manufacturer
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
CAGE: 96906
FAQs
Frequently asked questions for NSN 5310-01-069-6345
What is the NIIN of the NSN 5310-01-069-6345?
The National Item Identification Number (NIIN) of the NSN 5310-01-069-6345 is 01-069-6345
When the NSN 5310-01-069-6345 was assigned to the Federal Catalog?
It was assigned 45 years ago, on Wed, Dec 20, 1978
Does the NSN 5310-01-069-6345 contain any precious metals?
Type/content is unknown
Does the NSN 5310-01-069-6345 contain any hazardous material?
No data in HMIRS
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