5310-00-550-3778

Find complete technical information, availability, and procurement data for: 5310-00-550-3778
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-550-3778

Item Name Code

15933

Assigment Date

01/01/1963 (63 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

0.322 inches minimum and 0.328 inches maximum hole diameter, 0.057 inches minimum and 0.069 inches maximum material thickness, 0.044 inches minimum and 0.046 inches maximum recess depth, 0.410 inches minimum and 0.420 inches maximum recess diameter, 0.470 inches minimum and 0.490 inches maximum outside 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: 0.322 inches minimum and 0.328 inches maximum
Outside Diameter: 0.470 inches minimum and 0.490 inches maximum
Recess Diameter: 0.410 inches minimum and 0.420 inches maximum
Recess Depth: 0.044 inches minimum and 0.046 inches maximum
Material Thickness: 0.057 inches minimum and 0.069 inches maximum
Recess Angle: 90.0 degrees nominal
Material: steel comp 302 or steel comp 303 overall
Material Document And Classification: mil-s-5059,cond g mil spec 1st material response or mil-s-7720 mil spec 2nd material response overall
Style Designator: recessed

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-209-2528	No Name Available	01/01/1960

FAQs

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

What is the FSCG of the NSN 5310-00-550-3778?

The FSCG of the NSN 5310-00-550-3778 is 5310

Does the NSN 5310-00-550-3778 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-550-3778 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 5310-00-550-3778 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-550-3778 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 5310-00-550-3778 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963