1851632-1

View detailed technical data, stock status, and sourcing information for: 1851632-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-912-7640

Item Name Code

04227

Assigment Date

06/24/1966 (60 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

dobby hook both ends end style, 0.136 inches nominal both ends opening width, 0.215 inches nominal inside diameter, 1.127 inches nominal spring free length, closed design type

Product Characteristics

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

Inside Diameter: 0.215 inches nominal
Opening Width: 0.136 inches nominal both ends
End Style: dobby hook both ends
Spring Free Length: 1.127 inches nominal
Design Type: closed
Load Rating: 4.420 pounds nominal
Coil Helix Direction: right-hand or left-hand
Spring Free Outside Diameter: 0.285 inches nominal
Hook Radius: 0.043 inches nominal both ends
Spring Length Under Load: 1.601 inches nominal
Material: steel comp 302 overall
Material Document And Classification: qq-w-423,cond b fed spec single material response overall
Surface Treatment: passivate 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
1851632-1	Extension Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-912-7640?

The FSCG of the NSN 5360-00-912-7640 is 5360

Does NSN 5360-00-912-7640 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 5360-00-912-7640 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-912-7640 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 5360-00-912-7640 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, Jun 24, 1966