386B203

View detailed technical data, stock status, and sourcing information for: 386B203
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 386B203 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-491-6660

Item Name Code

05277

Assigment Date

10/29/2001 (24 years ago)

A cover of various shapes, sizes and materials, specifically designed to fit over the opening(s) of mechanical connections such as drive lines, air and fluid ducts and the like, of various equipments to provide mechanical protection and/or prevent the entrance of foreign matter during shipping, storage or maintenance. The cover is not an integral part of the equipment when the equipment is installed in the end item. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs and the like. See also cap (1), protective, dust and moisture seal. Excludes:cover, access.

0.750 inches nominal nut height, hexagon nut style, 2b thread class, prevailing torque with nonmetallic insert locking feature, 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
Locking Feature: prevailing torque with nonmetallic insert
Nut Style: hexagon
Nut Height: 0.750 inches nominal
Width Across Flats: 0.928 inches minimum and 0.940 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 11
Nominal Thread Size: 0.625 inches
Bearing Surface Type: chamfered
Material: plastic locking insert
Material: steel nut

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
386B203	Hexagon Self-Locking Nut
386B203010	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-491-6660?

The FSCG of the NSN 5310-01-491-6660 is 5310

Does the NSN 5310-01-491-6660 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-491-6660 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 5310-01-491-6660 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-491-6660 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 5310-01-491-6660 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Mon, Oct 29, 2001