Plate Self-Locking Nut

55A921A207-4

55A921A207-4
(NSN) National Stock Number
5310-00-275-2955
Federal Supply Classification
5310 Nuts and Washers
Item Name Code
05280
Schedule B Code
7318160000
Summary

3b thread class, right-hand thread direction, prevailing torque all metal design locking feature, 0.143 inches minimum and 0.148 inches maximum mounting hole diameter, straight holes nut mounting provision, 2 holes mounting hole arrangement style

DAC HCC DMIL RNCC
2 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

INC FIIG Concept Condition
05280 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
Details An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
Mounting Hole Diameter
0.143 inches minimum and 0.148 inches maximum
Details The length of a straight line which passes through the center of a mounting hole,and terminates at the circumference.
Nut Mounting Provision
straight holes
Details The means by which the nut is mounted.
Mounting Hole Arrangement Style
2 holes
Details The style designation indicating the configuration that most nearly corresponds to the arrangement of the mounting hole(s).
Distance From Aperture Center To Mounting Hole Center
0.495 inches minimum and 0.505 inches maximum
Details None.
Center To Center Distance Between Mounting Holes Along Length
0.998 inches minimum and 1.002 inches maximum
Details A measurement of the center to center distance between the mounting holes along the length.
Thread Series
unjf
Details A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.
Features Provided
floating nut
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
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.
Surface Treatment
cadmium nut
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
cadmium shell
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 2 fed spec single treatment response nut
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.
Surface Treatment Document And Classification
qq-p-416,type 2,class 2 fed spec single treatment response shell
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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
55A9291A207-4 72962 2 - 5 9 - SB
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
- 713 Z 9

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Manufacturer
SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA
CAGE: 80539
SANTA ANA , CA , 92705-5414
UNITED STATES
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FAQs
Frequently asked questions for NSN 5310-00-275-2955
What is the NIIN of the NSN 5310-00-275-2955?
The National Item Identification Number (NIIN) of the NSN 5310-00-275-2955 is 00-275-2955
When the NSN 5310-00-275-2955 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Sat, Aug 4, 1973
Does the NSN 5310-00-275-2955 contain any precious metals?
Type/content is unknown
Does the NSN 5310-00-275-2955 contain any hazardous material?
No data in HMIRS

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