Assembled Washer Screw

503-7-16

503-7-16
(NSN) National Stock Number
5305-00-685-7658
Federal Supply Classification
5305 Screws
Item Name Code
06660
Schedule B Code
7415338550
Summary

2a thread class, right-hand thread direction, 0.396 inches minimum thread length, 0.438 inches nominal fastener length, binding head style, 0.197 inches minimum and 0.208 inches maximum head diameter

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

INC FIIG Concept Condition
06660 A003B0 - 1
Specifications
Thread Class
2a
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.
Thread Length
0.396 inches minimum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
0.438 inches nominal
Details The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
Head Style
binding
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.197 inches minimum and 0.208 inches maximum
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Head Height
0.051 inches nominal
Details A measurement from the bottom to the top of the head,in distinction from depth.
Washer Quantity
1
Details The number of washers included on the item.
Internal Drive Style
slot
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
Nominal Thread Diameter
0.051 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Thread Quantity Per Inch
48
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Primary Washer Outside Diameter
0.220 inches nominal
Details None.
Primary Washer Style
flat internal teeth
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the primary washer.
Primary Washer Material Thickness
0.027 inches minimum and 0.034 inches maximum
Details None.
Part Name Assigned By Controlling Agency
navy special project
Details The name assigned to the item by the government agency or commercial organization controlling the design of the item.
Material
copper alloy fastener
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel comp 410 primary washer
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
nickel threads
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
passivate primary washer
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.
Thread Series Designator
unc
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A A -
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
NAVAL INVENTORY CONTROL POINT MECHANICSBURG
CAGE: 03950
MECHANICSBURG , PA , 17055-0788
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-685-7658
What is the NIIN of the NSN 5305-00-685-7658?
The National Item Identification Number (NIIN) of the NSN 5305-00-685-7658 is 00-685-7658
When the NSN 5305-00-685-7658 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 5305-00-685-7658 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-685-7658 contain any hazardous material?
No data in HMIRS
What is the ESD classification of NSN 5305-00-685-7658?
No known electrostatic discharge

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