F52866-3-31

View detailed technical data, stock status, and sourcing information for: F52866-3-31
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-445-7648

Item Name Code

05280

Assigment Date

06/12/1997 (29 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.

3b thread class, prevailing torque all metal design locking feature, dry film lubricant lubrication, right-hand thread direction, 0.098 inches minimum and 0.103 inches maximum mounting hole diameter

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Lubrication: dry film lubricant
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate (floating)
Nut Length: 1.375 inches nominal
Nut Height: 0.650 inches nominal
Plate Thickness: 0.023 inches minimum and 0.027 inches maximum
Plate Width: 0.865 inches maximum
Nut Mounting Provision: straight holes
Distance From Aperture Center To Mounting Hole Center: 0.557 inches minimum and 0.567 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Material: iron alloy 660 or steel comp 631 clip
Material: iron alloy 660 nut
Material: iron alloy 660 shell
Material: steel comp 303 or steel comp 302 base
Material: steel comp 631 spring
Material Document And Classification: ams 5525 assn std single material response clip
Material Document And Classification: ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5525 assn std single material response nut
Material Document And Classification: ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5525 assn std single material response shell
Material Document And Classification: qq-s-763 fed spec single material response base
Surface Treatment: passivate base
Surface Treatment: passivate clip
Surface Treatment: passivate nut
Surface Treatment: passivate shell
Surface Treatment: passivate spring
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response base
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response clip
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response nut
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response shell
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response spring

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
03A243A3-31A	Plate Self-Locking Nut
F52866-3-31	Plate Self-Locking Nut
F52866A3-31A	Plate Self-Locking Nut
NS202822A3-31	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-445-7648?

The FSCG of the NSN 5310-01-445-7648 is 5310

Does the NSN 5310-01-445-7648 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-445-7648 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 5310-01-445-7648 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-445-7648 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 5310-01-445-7648 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Thu, Jun 12, 1997