A77B490-1

View detailed technical data, stock status, and sourcing information for: A77B490-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-115-3018

Item Name Code

04227

Assigment Date

09/23/1968 (57 years ago)

An open- or close-coiled spring wound in various forms and from different shapes and types of materials and finished at the ends, designed in such a way as to provide resistance to pulling forces. The close-coiled springs may incorporate the special feature of initial tension created between the coils when wound, requiring an initial load to be applied to separate them. Excludes:spring,reinforcing hose.

1.348 inches nominal spring free length, 0.219 inches nominal first end opening width, full loop second end end style, raised hook first end end style, 0.154 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: 0.154 inches nominal
Opening Width: 0.219 inches nominal first end
End Style: full loop second end
End Style: raised hook first end
Spring Free Length: 1.348 inches nominal
Coil Quantity: 37
Design Type: closed
Coil Helix Direction: right-hand or left-hand
Spring Deflection Rate: 90.000 pounds per inch nominal
Spring Free Outside Diameter: 0.190 inches nominal
Hook Radius: 0.070 inches nominal both ends
Coil To Hook Inside Length: 0.218 inches nominal both ends
Material: steel overall
Surface Treatment: tin 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
A77B490-1	Extension Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-115-3018?

The FSCG of the NSN 5360-00-115-3018 is 5360

Does NSN 5360-00-115-3018 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 5360-00-115-3018 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-115-3018 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 5360-00-115-3018 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Mon, Sep 23, 1968