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5210-00-687-2541

Find complete technical information, availability, and procurement data for: 5210-00-687-2541

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5210-00-687-2541
Federal Supply Group
Measuring Tools
Federal Supply Classification
5210 Craftsmen's Measuring Tools
National Stock Number
5210-00-687-2541
Item Name Code
18274
Assigment Date
01/01/1963 (63 years ago)

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes:laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes:disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

3.000 inches nominal diameter, master double design type, 0.688 inches nominal thickness, 0.00000200 inches nominal working surface flatness accuracy, provided case

Product Characteristics

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

Diameter
3.000 inches nominal
Thickness
0.688 inches nominal
Case
provided
Design Type
master double
Working Surface Flatness Accuracy
0.00000200 inches nominal
Material
quartz
Nondefinitive Spec/Std Data
1 class and 10 size

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5210-00-213-9063 No Name Available 01/01/1961

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
A-A-58051 Optical Flat
V860506 Optical Flat

FAQs

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

What is the FSCG of the NSN 5210-00-687-2541?
The FSCG of the NSN 5210-00-687-2541 is 5210
Does NSN 5210-00-687-2541 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 5210-00-687-2541 contain precious materials?
Item does not contain precious metal.
Does NSN 5210-00-687-2541 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 5210-00-687-2541 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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