5340-00-638-0090

Find complete technical information, availability, and procurement data for: 5340-00-638-0090
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-638-0090

Item Name Code

40280

Assigment Date

01/01/1963 (63 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.

right-hand left internal (includes thru thread) thread direction, right-hand right external thread direction, 0.500 inches nominal flange diameter, 3b left internal (includes thru thread)3a right external thread class, 0.688 inches nominal left internal (includes thru thread)0.625 inches nominal right external thread length

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 left internal (includes thru thread)3a right external
Thread Direction: right-hand right external
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.688 inches nominal left internal (includes thru thread)0.625 inches nominal right external
Flange Diameter: 0.500 inches nominal
Flange Thickness: 1.000 inches nominal
Length: 2.250 inches nominal
Thread Quantity Per Inch: 16 right external
Thread Quantity Per Inch: 18 left internal (includes thru thread)
Nominal Thread Size: 0.312 inches left internal (includes thru thread)
Nominal Thread Size: 0.375 inches right external
Special Features: nut end has chamfer 0.031 in. by 40.0 deg min to 50.0 deg max
Material: steel comp 1020 standoff
Material Document And Classification: sae assn std single material response standoff
Surface Treatment: phosphate manganese standoff
Surface Treatment Document And Classification: mil-c-16232 ty1 mil spec single treatment response standoff
Style Designator: flanged with left internal thread
Thread Series Designator: unc left internal (includes thru thread)
Thread Series Designator: unc right external

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
1339229PC9	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-00-638-0090?

The FSCG of the NSN 5340-00-638-0090 is 5340

Does the NSN 5340-00-638-0090 have a Schedule B code assigned?

Yes, the Schedule B code is 7318190000

Does NSN 5340-00-638-0090 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 5340-00-638-0090 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-638-0090 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 5340-00-638-0090 was assigned to the Federal Catalog?

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