0274993

View detailed technical data, stock status, and sourcing information for: 0274993
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-935-9021

Item Name Code

05277

Assigment Date

06/05/1968 (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.

hexagon nut style, 3b thread class, right-hand thread direction, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature, dry film 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 or prevailing torque with nonmetallic insert
Lubrication: dry film lubricant
Nut Style: hexagon
Nut Height: 0.469 inches maximum
Width Across Flats: 0.551 inches minimum and 0.564 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 16
Hardness Rating: 26.0 rockwell c minimum and 35.0 rockwell c maximum
Nominal Thread Size: 0.375 inches
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 110.0 microinches
Material: plastic polyamide (nylon) locking insert
Material: steel nut
Surface Treatment: cadmium overall except insert
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall except insert

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-213-4177	No Name Available	11/01/1999

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
0274993	Hexagon Self-Locking Nut
10396618	Hexagon Self-Locking Nut
5310009359021	Hexagon Self-Locking Nut
5310PL0656698	Hexagon Self-Locking Nut
5590234	Hexagon Self-Locking Nut
8100019	Hexagon Self-Locking Nut
8KP182	Hexagon Self-Locking Nut
MS51943-35	Hexagon Self-Locking Nut
TIP00029	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-935-9021?

The FSCG of the NSN 5310-00-935-9021 is 5310

Does the NSN 5310-00-935-9021 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-935-9021 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 5310-00-935-9021 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-935-9021 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 5310-00-935-9021 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Jun 5, 1968