5310-00-266-0514

Find complete technical information, availability, and procurement data for: 5310-00-266-0514
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-266-0514

Item Name Code

01857

Assigment Date

01/01/1963 (63 years ago)

hexagon nut style, 0.208 inches minimum and 0.225 inches maximum nut height, 0.545 inches minimum and 0.562 inches maximum width across flats, 2b thread class, right-hand thread direction

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: 0.208 inches minimum and 0.225 inches maximum
Width Across Flats: 0.545 inches minimum and 0.562 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 18
Nominal Thread Size: 0.312 inches
Countersink Angle: 110.0 degrees nominal nut
Bearing Surface Type: flat
Material: steel comp 431 or steel comp 303 overall
Material Document And Classification: astm a276 assn std 1st material response or sae j405,uns s43100 assn std 1st material response or mil-s-7720,comp 303 mil spec 2nd material response or sae j405,uns s30300 assn std 2nd material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Specification/Standard Data: 81348-ff-n-836 government specification and 88044-an340 government standard
Nondefinitive Spec/Std Data: 2 type and 4 style and 5/16-18unc size
Departure From Cited Document: as modified by matl

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-595-8835	No Name Available	07/20/1966

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
562587	Hexagon Plain Nut
613118-208-226	Hexagon Plain Nut
AN340C516	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-266-0514?

The FSCG of the NSN 5310-00-266-0514 is 5310

Does the NSN 5310-00-266-0514 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-266-0514 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 5310-00-266-0514 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-266-0514 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 5310-00-266-0514 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963