77018-820

View detailed technical data, stock status, and sourcing information for: 77018-820
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-395-4582

Item Name Code

29729

Assigment Date

04/12/1974 (52 years ago)

0.828 inches maximum washer outside diameter, prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class, 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
Washer Outside Diameter: 0.828 inches maximum
Lubrication: dry film lubricant
Overall Height: 0.500 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.095 inches minimum
Width Across Flats: 0.616 inches minimum and 0.627 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.500 inches
Material: nickel alloy 718 overall
Material Document And Classification: ams 5662 assn std 1st material response or ams 5663 assn std 1st material response overall
Surface Treatment: copper overall
Surface Treatment Document And Classification: mil-c-14550 mil 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
77018-820	Extended Washer Self-Locking Nut
93902-8	Extended Washer Self-Locking Nut
BH00589-8	Extended Washer Self-Locking Nut
BH572-8	Extended Washer Self-Locking Nut
H49843-8	Extended Washer Self-Locking Nut
H53045-8	Extended Washer Self-Locking Nut
HS5489-8	Extended Washer Self-Locking Nut
LH10874-8	Extended Washer Self-Locking Nut
SLN146-8	Extended Washer Self-Locking Nut
ST3M572-8M	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-395-4582?

The FSCG of the NSN 5310-00-395-4582 is 5310

Does the NSN 5310-00-395-4582 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5310-00-395-4582 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 5310-00-395-4582 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-395-4582 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 5310-00-395-4582 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Apr 12, 1974