21AX657

View detailed technical data, stock status, and sourcing information for: 21AX657
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 21AX657 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

5310-00-333-7558

Item Name Code

15887

Assigment Date

01/01/1963 (63 years ago)

+2.5049 to 2.5103 inches thread pitch diameters, 0.240 inches minimum and 0.260 inches maximum drive point depth, left-hand thread direction, round nut style, 2.680 inches minimum and 2.700 inches maximum small end diameter

Product Characteristics

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

Thread Pitch Diameters: +2.5049 to 2.5103 inches
Thread Direction: left-hand
Small End Diameter: 2.680 inches minimum and 2.700 inches maximum
Drive Point Depth: 0.240 inches minimum and 0.260 inches maximum
Nut Style: round
Nut Diameter: 4.240 inches minimum and 4.260 inches maximum
Nut Thickness: 0.490 inches minimum and 0.510 inches maximum
Drive Point Width: 0.490 inches minimum and 0.510 inches maximum
Undercut Thickness: 0.110 inches minimum and 0.130 inches maximum
Drive Point Quantity: 4
Thread Series: uns
Thread Quantity Per Inch: 12
Nominal Thread Size: 2.559 inches
Material: steel overall

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
21AX657	Round Plain Nut
8332921	Round Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-333-7558?

The FSCG of the NSN 5310-00-333-7558 is 5310

Does the NSN 5310-00-333-7558 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-333-7558 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 5310-00-333-7558 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-333-7558 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 5310-00-333-7558 was assigned to the Federal Catalog?

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