M-2978

View detailed technical data, stock status, and sourcing information for: M-2978
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-707-6919

Item Name Code

04226

Assigment Date

01/01/1963 (63 years ago)

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

1.780 inches minimum and 1.790 inches maximum inside diameter, 4.031 inches nominal spring free length, spring end,squared and ground both ends end style, 1.687 inches nominal spring solid length, 7-1/2 coil quantity

Product Characteristics

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

Inside Diameter: 1.780 inches minimum and 1.790 inches maximum
End Style: spring end,squared and ground both ends
Spring Free Length: 4.031 inches nominal
Coil Quantity: 7-1/2
Spring Solid Length: 1.687 inches nominal
Coil Helix Direction: left-hand
Spring Deflection Rate: 82.500 pounds per inch nominal
Spring Free Outside Diameter: 2.230 inches nominal
Material: steel uns k06701 overall
Material Document And Classification: astm a230-47 assn std single material response 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Below is a list of NSNs that have been officially superseded by this NSN: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
2815-00-533-3091	No Name Available	01/01/1963

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
M-2978	Compression Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-707-6919?

The FSCG of the NSN 5360-00-707-6919 is 5360

Does NSN 5360-00-707-6919 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 5360-00-707-6919 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-707-6919 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 5360-00-707-6919 was assigned to the Federal Catalog?

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