90-116

View detailed technical data, stock status, and sourcing information for: 90-116
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-725-7708

Item Name Code

36744

Assigment Date

01/17/2025 (1 year ago)

A housing which encloses the crankshaft and connecting rods of certain types of reciprocating engines. See also engine block as modified and oil, pan.

1.210 inches maximum overall height, 1.580 inches minimum washer outside diameter, 3b thread class, right-hand thread direction, prevailing torque all nonmetallic design locking feature

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 nonmetallic design
Washer Outside Diameter: 1.580 inches minimum
Overall Height: 1.210 inches maximum
Nut Style: spline drive
Drive Point Quantity: 38
Washer Thickness: 0.170 inches minimum
End Item Identification: v-22
Thread Series: unjf
Thread Quantity Per Inch: 18
Nominal Thread Size: 1.00 inches
Part Name Assigned By Controlling Agency: nut,spline,drive,self-locking,castelated,a286, 450f and 1200f 180 ksi ftu
Material: iron alloy 660 overall
Material Document And Classification: ams5732 or 5737 national std/spec single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: ams 2700,method 1,class 4 national std/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
90-116	Extended Washer Self-Locking Nut
90-116-16L	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-725-7708?

The FSCG of the NSN 5310-01-725-7708 is 5310

Does the NSN 5310-01-725-7708 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-725-7708 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 5310-01-725-7708 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-725-7708 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 5310-01-725-7708 was assigned to the Federal Catalog?

It was assigned 1 year ago, on Fri, Jan 17, 2025