BRH10A5

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-338-3365

Item Name Code

05277

Assigment Date

05/02/1991 (35 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

3b thread class, internal or external wrenching hexagon nut style, right-hand thread direction, prevailing torque all metal design locking feature, 0.268 inches maximum nut height

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
Nut Style: internal or external wrenching hexagon
Nut Height: 0.268 inches maximum
Inside Width Across Flats: 0.349 inches minimum and 0.357 inches maximum
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjc
Thread Quantity Per Inch: 24
Hardness Rating: 36.0 rockwell c minimum and 44.0 rockwell c maximum
Nominal Thread Size: 0.312 inches
Bearing Surface Type: chamfered
Special Features: lubrication per mil-l-46010
Material: steel comp 8740 or steel comp 4340 or steel comp 4140 overall
Material Document And Classification: mil-s-6049 mil spec 1st material response or ams 6322 assn std 1st material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response 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
BACN10JC5CF	Hexagon Self-Locking Nut
BRH10A5	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-338-3365?

The FSCG of the NSN 5310-01-338-3365 is 5310

Does the NSN 5310-01-338-3365 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-338-3365 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 5310-01-338-3365 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-338-3365 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 5310-01-338-3365 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, May 2, 1991