3-51221-1

View detailed technical data, stock status, and sourcing information for: 3-51221-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-888-0113

Item Name Code

04227

Assigment Date

01/01/1962 (64 years ago)

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

0.219 inches nominal second end opening width, 0.267 inches minimum and 0.279 inches maximum inside diameter, 0.144 inches nominal first end opening width, long round hook both ends end style, 1.670 inches minimum and 1.720 inches maximum spring free length

Product Characteristics

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

Inside Diameter: 0.267 inches minimum and 0.279 inches maximum
Opening Width: 0.144 inches nominal first end
Opening Width: 0.219 inches nominal second end
End Style: long round hook both ends
Spring Free Length: 1.670 inches minimum and 1.720 inches maximum
Coil Quantity: 29
Design Type: closed
Load Rating: 5.00 pounds nominal
Coil Helix Direction: right-hand or left-hand
Spring Deflection Rate: 3.380 pounds per inch nominal
Spring Free Outside Diameter: 0.345 inches minimum and 0.357 inches maximum
Material: steel comp 631 overall
Material Document And Classification: ams 5673 assn std 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
3-51221-1	Extension Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-888-0113?

The FSCG of the NSN 5360-00-888-0113 is 5360

Does NSN 5360-00-888-0113 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 5360-00-888-0113 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-888-0113 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 5360-00-888-0113 was assigned to the Federal Catalog?

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