6685-00-824-1633

Find complete technical information, availability, and procurement data for: 6685-00-824-1633
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6685 Humidity Measuring and Controlling Instruments, Temperature and Pressure

National Stock Number

6685-00-824-1633

Item Name Code

19138

Assigment Date

01/01/1961 (65 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

0.750 inches nominal overall width, unf screw thread series designator, 7/16-20 thread size, 3a thread class, 2.600 inches nominal overall length

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
Overall Length: 2.600 inches nominal
Overall Width: 0.750 inches nominal
Thread Size: 7/16-20
Screw Thread Series Designator: unf
Thread Location: external
Connection Quantity: 1
Operating Pressure Range: +0.0 to 3000.0 pounds per square inch
Fluid Type For Which Designed: 0il
Threaded Direct Pressure Connection: provided
Tube Connection Type: flareless
Removable Piston: not provided
Material: aluminum alloy

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6685-00-789-5013	No Name Available	01/01/1960

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
8195-21	Fluid Pressure Dampener

FAQs

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

What is the FSCG of the NSN 6685-00-824-1633?

The FSCG of the NSN 6685-00-824-1633 is 6685

Does the NSN 6685-00-824-1633 have a Schedule B code assigned?

Yes, the Schedule B code is 9026200000

Does NSN 6685-00-824-1633 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 6685-00-824-1633 contain precious materials?

Item does not contain precious metal.

Does NSN 6685-00-824-1633 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 6685-00-824-1633 was assigned to the Federal Catalog?

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