166345PC121

View detailed technical data, stock status, and sourcing information for: 166345PC121
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-216-7723

Item Name Code

14218

Assigment Date

01/01/1961 (65 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

4.250 inches nominal outside diameter, 0.042 inches nominal material thickness, navy special project part name assigned by controlling agency, steel overall material, 2.875 inches nominal hole diameter

Product Characteristics

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

Hole Diameter: 2.875 inches nominal
Outside Diameter: 4.250 inches nominal
Material Thickness: 0.042 inches nominal
Part Name Assigned By Controlling Agency: navy special project
Material: steel overall
Style Designator: split helical-right hand

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
165582PC121	Lock Washer
165582PC135	Lock Washer
166345PC121	Lock Washer
166345PC135	Lock Washer
166346PC121	Lock Washer
166346PC135	Lock Washer
166353PC121	Lock Washer
166353PC135	Lock Washer
166433PC121	Lock Washer
166433PC135	Lock Washer
166434PC121	Lock Washer
166434PC135	Lock Washer
166560PC121	Lock Washer
166799PC121	Lock Washer
166799PC135	Lock Washer
184422PC121	Lock Washer
184422PC135	Lock Washer
184423PC121	Lock Washer
184423PC135	Lock Washer
184428PC121	Lock Washer
184433PC121	Lock Washer
184433PC135	Lock Washer
185413PC121	Lock Washer
185413PC135	Lock Washer
185414PC121	Lock Washer
185414PC135	Lock Washer
185417PC121	Lock Washer
185417PC135	Lock Washer
185431PC121	Lock Washer
185431PC135	Lock Washer
185449PC121	Lock Washer
185449PC135	Lock Washer
185450PC121	Lock Washer
185450PC135	Lock Washer
185456PC121	Lock Washer
185456PC135	Lock Washer
185463PC121	Lock Washer
185463PC135	Lock Washer
185471PC121	Lock Washer
185471PC135	Lock Washer
185476PC125	Lock Washer
186231PC135	Lock Washer
187681PC121	Lock Washer
187681PC135	Lock Washer
187682PC121	Lock Washer
187682PC135	Lock Washer
187685PC121	Lock Washer
187685PC135	Lock Washer
187700PC121	Lock Washer
187700PC135	Lock Washer
187971PC121	Lock Washer
187971PC135	Lock Washer
187972PC121	Lock Washer
187972PC135	Lock Washer
187977PC121	Lock Washer
188081PC121	Lock Washer
188081PC135	Lock Washer
188082PC121	Lock Washer
188082PC135	Lock Washer
188085PC121	Lock Washer
188085PC135	Lock Washer
188204PC121	Lock Washer
188204PC135	Lock Washer
188219PC121	Lock Washer
188219PC135	Lock Washer
188220PC121	Lock Washer
188220PC135	Lock Washer
188225PC121	Lock Washer
188226PC121	Lock Washer
188226PC135	Lock Washer
188227PC121	Lock Washer
188227PC135	Lock Washer
188232PC121	Lock Washer
188282PC121	Lock Washer
188282PC135	Lock Washer
188283PC121	Lock Washer
188283PC135	Lock Washer
188288PC121	Lock Washer
188403PC121	Lock Washer
188403PC135	Lock Washer
188404PC121	Lock Washer
188404PC135	Lock Washer
188405PC121	Lock Washer
188405PC135	Lock Washer
188406PC121	Lock Washer
188406PC135	Lock Washer
188420PC121	Lock Washer
188420PC135	Lock Washer
188476PC135	Lock Washer
188487PC121	Lock Washer
188487PC135	Lock Washer
1R3000-30-121	Lock Washer
1R3000-30-135	Lock Washer
43K8	Lock Washer
43K9	Lock Washer
E889D43	Lock Washer
E889S43	Lock Washer

FAQs

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

What is the FSCG of the NSN 5310-00-216-7723?

The FSCG of the NSN 5310-00-216-7723 is 5310

Does the NSN 5310-00-216-7723 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-00-216-7723 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 5310-00-216-7723 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-216-7723 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 5310-00-216-7723 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961