37FM440

View detailed technical data, stock status, and sourcing information for: 37FM440
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-111-0800

Item Name Code

05277

Assigment Date

08/23/1968 (58 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

3b thread class, prevailing torque all metal design locking feature, hexagon nut style, right-hand thread direction, soluble lubricant lubrication

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
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.122 inches maximum
Width Across Flats: 0.181 inches minimum and 0.189 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 40
Nominal Thread Size: 0.112 inches
Bearing Surface Type: chamfered
Material: steel overall
Surface Treatment: cadmium and chromate overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-162-5285	No Name Available	11/07/1973

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
37FM440	Hexagon Self-Locking Nut
5310PL0145212	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-111-0800?

The FSCG of the NSN 5310-00-111-0800 is 5310

Does the NSN 5310-00-111-0800 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-111-0800 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 5310-00-111-0800 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-111-0800 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 5310-00-111-0800 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Aug 23, 1968