211055896

View detailed technical data, stock status, and sourcing information for: 211055896
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-656-0404

Item Name Code

01869

Assigment Date

06/15/2016 (10 years ago)

A lens,optical instrument, mounted in a holder,optical instrument.

0.298 inches minimum and 0.328 inches maximum external prebent key width, 0.313 inches minimum and 0.353 inches maximum internal prebent key width, 0.126 inches minimum and 0.250 inches maximum internal prebent key length, 3.582 inches minimum and 3.612 inches maximum hole diameter, 4.236 inches minimum and 4.326 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: 3.582 inches minimum and 3.612 inches maximum
Outside Diameter: 4.236 inches minimum and 4.326 inches maximum
Internal Prebent Key Length: 0.126 inches minimum and 0.250 inches maximum
External Prebent Key Width: 0.298 inches minimum and 0.328 inches maximum
Internal Prebent Key Width: 0.313 inches minimum and 0.353 inches maximum
Overall Distance Including Keys: 4.938 inches maximum
External Key Quantity: 19
Material Thickness: 0.088 inches minimum and 0.100 inches maximum
End Item Identification: mark21 air tu
Part Name Assigned By Controlling Agency: washer, key retaining
Special Features: temper as to permit it being bent 180 degrees without fracture
Material: steel corrosion resisting overall
Material Document And Classification: aisi 302 assn std single material response or aisi 303 assn std single material response or aisi 304 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35, type i, ii, or iii fed spec single treatment response overall
Style Designator: key

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
211055896	Key Washer
754-8207763 ITEM 21	Key Washer
MS19070-183	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-01-656-0404?

The FSCG of the NSN 5310-01-656-0404 is 5310

Does the NSN 5310-01-656-0404 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-656-0404 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 5310-01-656-0404 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-656-0404 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 5310-01-656-0404 was assigned to the Federal Catalog?

It was assigned 10 years ago, on Wed, Jun 15, 2016