663-1

View detailed technical data, stock status, and sourcing information for: 663-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-787-6424

Item Name Code

24328

Assigment Date

01/01/1962 (64 years ago)

0.4950 inches minimum and 0.5050 inches maximum first step diameter, 0.4720 inches minimum and 0.4920 inches maximum overall height, 0.1560 inches minimum and 0.1590 inches maximum bore diameter, 3.0 chamfer angle in deg, 0.3150 inches minimum and 0.3250 inches maximum counterbore diameter

Product Characteristics

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

Chamfer Angle In Deg: 3.0
Counterbore Diameter: 0.3150 inches minimum and 0.3250 inches maximum
Overall Height: 0.4720 inches minimum and 0.4920 inches maximum
First Step Diameter: 0.4950 inches minimum and 0.5050 inches maximum
Bore Diameter: 0.1560 inches minimum and 0.1590 inches maximum
Design Type: solid
End Diameter: 0.3700 inches minimum and 0.3800 inches maximum
Counterbore Length: 0.2280 inches minimum and 0.2380 inches maximum
Material: steel
Surface Treatment: phosphate
Style Designator: seat

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
125-3986	Helical Compression Spring Seat
368015R1	Helical Compression Spring Seat
4048635	Helical Compression Spring Seat
40983	Helical Compression Spring Seat
663-1	Helical Compression Spring Seat
P92337	Helical Compression Spring Seat

FAQs

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

What is the FSCG of the NSN 5340-00-787-6424?

The FSCG of the NSN 5340-00-787-6424 is 5340

Does the NSN 5340-00-787-6424 have a Schedule B code assigned?

Yes, the Schedule B code is 7320205000

Does NSN 5340-00-787-6424 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 5340-00-787-6424 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-787-6424 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 5340-00-787-6424 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962