5340-01-521-6401

Find complete technical information, availability, and procurement data for: 5340-01-521-6401
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-521-6401

Item Name Code

20815

Assigment Date

06/28/2004 (22 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

2a thread class, 18 thread quantity per inch, 3.250 inches nominal thread length, power distribution end item identification, bolt mounting method

Product Characteristics

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

Thread Class: 2a
Thread Length: 3.250 inches nominal
End Item Identification: power distribution
Mounting Method: bolt
Thread Quantity Per Inch: 18
Special Features: includes wing nut, hinge pin, spring clamp, swing bolt, pin plate assy
Material: copper alloy bolt
Material: copper alloy pin
Material: steel corrosion resisting wing nut
Thread Series Designator: unc

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
671-6725661 ASSY 82	Spring Tension Clip

FAQs

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

What is the FSCG of the NSN 5340-01-521-6401?

The FSCG of the NSN 5340-01-521-6401 is 5340

Does the NSN 5340-01-521-6401 have a Schedule B code assigned?

Yes, the Schedule B code is 7326908630

Does NSN 5340-01-521-6401 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 5340-01-521-6401 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-521-6401 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-521-6401 was assigned to the Federal Catalog?

It was assigned 22 years ago, on Mon, Jun 28, 2004