5310-01-123-6381

Find complete technical information, availability, and procurement data for: 5310-01-123-6381
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-123-6381

Item Name Code

04893

Assigment Date

12/16/1981 (44 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

right-hand thread direction, internal wrenching nut style, double hexagon internal drive style, 3b thread class, 0.250 inches nominal width between flats

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
Width Between Flats: 0.250 inches nominal
Internal Drive Style: double hexagon
Nut Style: internal wrenching
Nut Diameter: 0.302 inches minimum and 0.307 inches maximum
Nut Height: 0.309 inches minimum and 0.319 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 32
Hardness Rating: 38.0 rockwell c minimum and 42.0 rockwell c maximum
Nominal Thread Size: 0.190 inches
Countersink Angle: 45.0 degrees nominal overall
Material: steel overall
Reference Number Differentiating Characteristics: as differentiated by length

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
25953	Internal Wrenching Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-123-6381?

The FSCG of the NSN 5310-01-123-6381 is 5310

Does the NSN 5310-01-123-6381 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-123-6381 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 5310-01-123-6381 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-123-6381 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 5310-01-123-6381 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Wed, Dec 16, 1981