Flat Washer

1550301

1550301
(NSN) National Stock Number
5310-01-474-8778
Federal Supply Classification
5310 Nuts and Washers
Item Name Code
13393
Schedule B Code
7318220000
Summary

Rectangular cross-sectional shape style, 0.197 inches nominal hole diameter, round peripheral shape style, round center hole shape style, 0.047 inches nominal thickness, 0.305 inches nominal overall diameter

DAC HCC DMIL RNCC
A - - 5
RNVC SADC MSDS RNAAC
9 - - ZZ
Identification

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

INC FIIG Concept Condition
13393 A022B0 1 1
Specifications
Cross-Sectional Shape Style
rectangular
Details The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.
Hole Diameter
0.197 inches nominal
Details The length of a straight line which passes through the center of a hole,and terminates at the circumference.
Peripheral Shape Style
round
Details The style designation indicating the configuration that most nearly corresponds to the peripheral shape of the item.
Center Hole Shape Style
round
Details The style designation indicating the configuration that most nearly corresponds to the shape of the center hole.
Thickness
0.047 inches nominal
Details A measurement of the smallest dimension of an item,in distinction from length or width.
Overall Diameter
0.305 inches nominal
Details A measurement of the longest straight line across a circular cross-sectional plane.
Hardness Rating
38.0 rockwell c minimum and 42.0 rockwell c maximum
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Surface Finish
250.0 microinches all surfaces
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
aisi e4140,uns g41400 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
phosphate 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.
Surface Treatment Document And Classification
dod-p-16232,type m,class 1 assn std single treatment response overall
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
1550301-6 D9182 6 - C 1 - ZZ
1550301-6 53711 E - 3 2 - ZZ
1603000 80066 A - 5 9 - ZZ
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
55210 - U -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
CAGE: 10001
WASHINGTON , DC , 20376
UNITED STATES
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FAQs
Frequently asked questions for NSN 5310-01-474-8778
What is the NIIN of the NSN 5310-01-474-8778?
The National Item Identification Number (NIIN) of the NSN 5310-01-474-8778 is 01-474-8778
When the NSN 5310-01-474-8778 was assigned to the Federal Catalog?
It was assigned 24 years ago, on Tue, May 16, 2000
Does the NSN 5310-01-474-8778 contain any precious metals?
Does not contain precious metal
Does the NSN 5310-01-474-8778 contain any hazardous material?
No data in HMIRS

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