78686-16

View detailed technical data, stock status, and sourcing information for: 78686-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-726-2944

Item Name Code

36744

Assigment Date

02/11/2025 (1 year ago)

A manually or power operated valve having three or more ports. The direction of the flow through the various ports is controlled by either one or more reciprocating slide(s) or spool(s) with recess areas which mate with ports in an integral or replaceable ported sleeve, or one or more poppet(s). It is designed to change the direction of fluid flow from one valve port to another. An off (no flow) position is not a flow pattern. The valve is designed to actuate various components of a fluid system. A power operated valve may have a manual override. For items which stop, start, or change the flow of fluid, see: valve, solenoid. Excludes:valve, plug. See also servovalve, hydraulic; body section, working, linear directional control valve; and valve assembly.

1.720 inches maximum washer outside diameter, 3a thread class, dry film lubricant lubrication, prevailing torque all metal design locking feature, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Washer Outside Diameter: 1.720 inches maximum
Lubrication: dry film lubricant
Overall Height: 1.000 inches maximum
Nut Style: spline drive
Drive Point Quantity: 12
Washer Thickness: 0.170 inches nominal
End Item Identification: f-15ex
Thread Series: unjf
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.0 inches
Part Name Assigned By Controlling Agency: nut-self-locking,extruded washer,spline,inconel,dry film,220 ksi ftu
Material: nickel alloy 718 overall
Material Document And Classification: ams 5662 assn std single material response or ams 5663 assn std single material 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
78686-16	Extended Washer Self-Locking Nut
H50609-16	Extended Washer Self-Locking Nut
ST3M752-16	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-726-2944?

The FSCG of the NSN 5310-01-726-2944 is 5310

Does the NSN 5310-01-726-2944 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5310-01-726-2944 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 5310-01-726-2944 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-726-2944 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 5310-01-726-2944 was assigned to the Federal Catalog?

It was assigned 1 year ago, on Tue, Feb 11, 2025