5310-01-338-0443

Find complete technical information, availability, and procurement data for: 5310-01-338-0443
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-338-0443

Item Name Code

05280

Assigment Date

04/25/1991 (35 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.

prevailing torque all metal design locking feature, 3b thread class, right-hand thread direction, 0.317 inches nominal nut counterbore diameter, dry film lubricant lubrication

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
Counterbore Diameter: 0.317 inches nominal nut
Lubrication: dry film lubricant
Mounting Hole Diameter: 0.130 inches minimum and 0.145 inches maximum
Nut Style: plate
Nut Length: 1.396 inches maximum
Nut Height: 0.363 inches minimum and 0.383 inches maximum
Plate Thickness: 0.035 inches nominal
Plate Width: 0.641 inches maximum
Nut Counterbore Depth: 0.062 inches nominal nut
Nut Mounting Provision: straight holes
Mounting Hole Arrangement Style: 2 holes
Distance From Aperture Center To Mounting Hole Center: 0.495 inches minimum and 0.505 inches maximum
Center To Center Distance Between Mounting Holes Along Length: 0.310 inches minimum and 0.314 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Features Provided: floating nut
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.312 inches
Special Features: kalgard fa lubricant
Material: iron alloy 660 overall
Material Document And Classification: ams 5525 assn std single material response or ams 5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall

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
132F177-5	Plate Self-Locking Nut
BACN10JA5CF	Plate Self-Locking Nut
NAS1774C5M	Plate Self-Locking Nut
NS202484-054	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-338-0443?

The FSCG of the NSN 5310-01-338-0443 is 5310

Does the NSN 5310-01-338-0443 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-338-0443 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 5310-01-338-0443 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-338-0443 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 5310-01-338-0443 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Apr 25, 1991