B21205

View detailed technical data, stock status, and sourcing information for: B21205
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-316-4489

Item Name Code

04227

Assigment Date

01/01/1963 (63 years ago)

An open- or close-wound coil spring, consisting of one or more helical coils wound from different shapes and types of material and finished at the ends, designed to exert pressure in a rotating direction around the coil axis. Excludes:springs designed for thermal actuation (springs in which the torsion forces are counteracted by changes in temperature) and spring,reinforcing,hose.

9 coil quantity, closed design type, short twisted hook both ends end style, 1.940 inches nominal spring free length, 0.498 inches nominal inside diameter

Product Characteristics

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

Inside Diameter: 0.498 inches nominal
End Style: short twisted hook both ends
Spring Free Length: 1.940 inches nominal
Coil Quantity: 9
Design Type: closed
Coil Helix Direction: right-hand
Spring Free Outside Diameter: 0.688 inches nominal
Hook Radius: 0.156 inches nominal first end
Hook Radius: 0.219 inches nominal second end
Coil To Hook Inside Length: 0.312 inches nominal first end
Coil To Hook Inside Length: 0.438 inches nominal second end
Material: steel uns k08500 overall
Material Document And Classification: qq-w-470a fed spec single material response overall
Style Designator: cylindrical

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
206-135	Extension Helical Spring
8341-11	Extension Helical Spring
979-1B270	Extension Helical Spring
B21205	Extension Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-316-4489?

The FSCG of the NSN 5360-00-316-4489 is 5360

Does NSN 5360-00-316-4489 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 5360-00-316-4489 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-316-4489 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 5360-00-316-4489 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963