639AS627-1

View detailed technical data, stock status, and sourcing information for: 639AS627-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-053-1006

Item Name Code

15933

Assigment Date

12/28/1977 (48 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

0.096 inches minimum and 0.097 inches maximum hole diameter, 0.102 inches nominal recess diameter, 90.0 degrees nominal recess angle, 0.0045 inches minimum and 0.0055 inches maximum material thickness, 0.141 inches minimum and 0.146 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: 0.096 inches minimum and 0.097 inches maximum
Outside Diameter: 0.141 inches minimum and 0.146 inches maximum
Recess Diameter: 0.102 inches nominal
Material Thickness: 0.0045 inches minimum and 0.0055 inches maximum
Recess Angle: 90.0 degrees nominal
Surface Finish: 16.0 microinches bottom
Surface Finish: 16.0 microinches top
Material: copper alloy 260 or copper alloy 268 overall
Material Document And Classification: qq-b-613,temper hard fed spec all material responses or qq-b-626,temper hard fed spec all material responses overall
Style Designator: recessed

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
639AS627-1	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-01-053-1006?

The FSCG of the NSN 5310-01-053-1006 is 5310

Does the NSN 5310-01-053-1006 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-01-053-1006 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 5310-01-053-1006 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-053-1006 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 5310-01-053-1006 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Wed, Dec 28, 1977