27277B

View detailed technical data, stock status, and sourcing information for: 27277B
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-597-3451

Item Name Code

04227

Assigment Date

01/01/1963 (63 years ago)

0.281 inches nominal first end opening width, machined half loop both ends end style, 3.053 inches nominal spring free length, 0.728 inches minimum and 0.790 inches maximum inside diameter, 0.406 inches nominal both ends opening width

Product Characteristics

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

Inside Diameter: 0.728 inches minimum and 0.790 inches maximum
Opening Width: 0.281 inches nominal first end
Opening Width: 0.406 inches nominal both ends
End Style: machined half loop both ends
Spring Free Length: 3.053 inches nominal
Coil Quantity: 13-1/2
Design Type: closed
Load Rating: 14.500 pounds minimum and 21.500 pounds maximum
Coil Helix Direction: right-hand or left-hand
Spring Deflection Rate: 33.000 pounds per inch nominal
Spring Free Outside Diameter: 0.969 inches minimum and 1.031 inches maximum
Spring Length Under Load: 5.188 inches maximum
Surface Treatment: cadmium overall
Style Designator: cylindrical

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-664-5630	No Name Available	07/01/1968

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
27277B	Extension Helical Spring
A329309	Extension Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-597-3451?

The FSCG of the NSN 5360-00-597-3451 is 5360

Does NSN 5360-00-597-3451 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 5360-00-597-3451 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-597-3451 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 5360-00-597-3451 was assigned to the Federal Catalog?

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