5310-01-657-4040

Find complete technical information, availability, and procurement data for: 5310-01-657-4040
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-657-4040

Item Name Code

05277

Assigment Date

08/11/2016 (10 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.365 inches minimum and 0.463 inches maximum nut height, prevailing torque all metal design locking feature, hexagon nut style, mrap - m-atv ui end item identification, 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 Direction: right-hand
Locking Feature: prevailing torque all metal design
Nut Style: hexagon
Nut Height: 0.365 inches minimum and 0.463 inches maximum
End Item Identification: mrap - m-atv ui
Width Across Flats: 0.675 inches minimum and 0.690 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 14
Nominal Thread Size: 0.44 inches
Bearing Surface Type: chamfered or flat
Special Features: locking feature: deformed threads; color: black
Material: steel overall
Surface Treatment: phosphate zinc 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
4031492004	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-657-4040?

The FSCG of the NSN 5310-01-657-4040 is 5310

Does the NSN 5310-01-657-4040 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-657-4040 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 5310-01-657-4040 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-657-4040 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 5310-01-657-4040 was assigned to the Federal Catalog?

It was assigned 10 years ago, on Thu, Aug 11, 2016