HS14-968-20

View detailed technical data, stock status, and sourcing information for: HS14-968-20

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HS14-968-20
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-531-8570
Item Name Code
01857
Assigment Date
01/01/1963 (63 years ago)

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.

2b thread class, 0.922 inches minimum and 0.937 inches maximum width across flats, 0.535 inches minimum and 0.559 inches maximum nut height, right-hand thread direction, hexagon nut style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2b
Thread Direction
right-hand
Nut Style
hexagon
Nut Height
0.535 inches minimum and 0.559 inches maximum
Width Across Flats
0.922 inches minimum and 0.937 inches maximum
Thread Series
unf
Thread Quantity Per Inch
18
Hardness Rating
23.0 rockwell c minimum and 32.0 rockwell c maximum
Nominal Thread Size
0.625 inches
Bearing Surface Type
chamfered or washer faced
Material
steel overall
Material Document And Classification
sae j995,grade 5 assn std single material response overall
Surface Treatment
zinc and chromate overall
Surface Treatment Document And Classification
astm b633,ty 2,cl 3 assn std single treatment response overall
Nondefinitive Spec/Std Data
1 type and 5 grade

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
HS14-968-20 Hexagon Plain Nut

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5310-00-531-8570?
The FSCG of the NSN 5310-00-531-8570 is 5310
Does the NSN 5310-00-531-8570 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-531-8570 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-00-531-8570 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-531-8570 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-00-531-8570 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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