99-4391

View detailed technical data, stock status, and sourcing information for: 99-4391
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5360 Coil, Flat, Leaf and Wire Springs

National Stock Number

5360-00-945-4389

Item Name Code

04226

Assigment Date

03/09/1966 (60 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

3.020 inches nominal spring free length, 1.885 inches nominal bore diameter, 1.675 inches nominal inside diameter, 1.652 inches nominal accommodated rod diameter, spring end,squared and ground both ends end style

Product Characteristics

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

Inside Diameter: 1.675 inches nominal
End Style: spring end,squared and ground both ends
Bore Diameter: 1.885 inches nominal
Spring Free Length: 3.020 inches nominal
Accommodated Rod Diameter: 1.652 inches nominal
Coil Quantity: 7
Spring Solid Length: 0.657 inches nominal
Coil Helix Direction: right-hand or left-hand
Spring Deflection Rate: 3.400 pounds per inch nominal
Spring Free Outside Diameter: 1.875 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
99-4391	Compression Helical Spring

FAQs

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

What is the FSCG of the NSN 5360-00-945-4389?

The FSCG of the NSN 5360-00-945-4389 is 5360

Does NSN 5360-00-945-4389 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 5360-00-945-4389 contain precious materials?

Precious metal content is unknown

Does NSN 5360-00-945-4389 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 5360-00-945-4389 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Mar 9, 1966