LB50-9C

View detailed technical data, stock status, and sourcing information for: LB50-9C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-352-8691

Item Name Code

21824

Assigment Date

02/01/1992 (34 years ago)

A plain nut on which has been assembled a nonremovable washer.

right-hand thread direction, 1.080 inches maximum washer outside diameter, 0.676 inches minimum and 0.686 inches maximum first end counterbore diameter, 3b thread class, 0.690 inches minimum and 0.710 inches maximum overall 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
Washer Outside Diameter: 1.080 inches maximum
Counterbore Diameter: 0.676 inches minimum and 0.686 inches maximum first end
Overall Height: 0.690 inches minimum and 0.710 inches maximum
Nut Style: flat with turned back edge
Nut Height: 0.378 inches nominal
Nut Counterbore Depth: 0.312 inches minimum and 0.332 inches maximum first end
Width Across Flats: 0.865 inches minimum and 0.877 inches maximum
Temp Rating: 450.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 18
Nominal Thread Size: 0.562 inches
Material: iron alloy 660 nut
Material: steel comp 302 washer
Material Document And Classification: ams 5731 assn std single material response or ams 5737 assn std single material response nut
Material Document And Classification: mil-s-5059 mil spec single material response washer
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
03A115-9	Assembled Washer Plain Nut
84055-9	Assembled Washer Plain Nut
AS381-9	Assembled Washer Plain Nut
LB50-9C	Assembled Washer Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-352-8691?

The FSCG of the NSN 5310-01-352-8691 is 5310

Does the NSN 5310-01-352-8691 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-352-8691 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 5310-01-352-8691 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-352-8691 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 5310-01-352-8691 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sat, Feb 1, 1992