14111F PIECE 19

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-026-5111

Item Name Code

01857

Assigment Date

08/27/1976 (49 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.

1.212 inches minimum and 1.250 inches maximum width across flats, 2b thread class, right-hand thread direction, 0.710 inches minimum and 0.758 inches maximum nut height, 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: 0.710 inches minimum and 0.758 inches maximum
Width Across Flats: 1.212 inches minimum and 1.250 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 10
Hardness Rating: 24.0 rockwell c minimum and 28.0 rockwell c maximum
Nominal Thread Size: 0.750 inches
Bearing Surface Type: chamfered or washer faced
Material: steel overall
Material Document And Classification: astm a194,grade 2h assn std single material 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
14111F PIECE 19	Hexagon Plain Nut
AEN12C750000AF7A11	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-026-5111?

The FSCG of the NSN 5310-01-026-5111 is 5310

Does the NSN 5310-01-026-5111 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-026-5111 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 5310-01-026-5111 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-026-5111 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 5310-01-026-5111 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Fri, Aug 27, 1976