5340-00-405-2640

Find complete technical information, availability, and procurement data for: 5340-00-405-2640
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-405-2640

Item Name Code

40280

Assigment Date

03/31/1971 (55 years ago)

A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see stud (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see nut (as modified); use maximum dimensions(s) for compliance.

2.500 inches nominal length, round cross-sectional shape, 1.0009 inches minimum and 1.0011 inches maximum diameter, 0.843 inches minimum and 0.844 inches maximum groove diameter, 0.088 inches minimum and 0.092 inches maximum groove width

Product Characteristics

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

Groove Diameter: 0.843 inches minimum and 0.844 inches maximum
Groove Width: 0.088 inches minimum and 0.092 inches maximum
Diameter: 1.0009 inches minimum and 1.0011 inches maximum
Length: 2.500 inches nominal
Cross-Sectional Shape: round
Left End Chamfer Angle: 12.5 degrees nominal
Right End Chamfer Angle: 12.5 degrees nominal
Special Features: 0.529 in. min 0.539 in. max dia hole through pin axial unthreded portion
Style Designator: left internal thread

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
2122701-283	Spacing Threaded Standoff
2122703-283	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-00-405-2640?

The FSCG of the NSN 5340-00-405-2640 is 5340

Does NSN 5340-00-405-2640 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 5340-00-405-2640 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-405-2640 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 5340-00-405-2640 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Mar 31, 1971