25-8844-7

View detailed technical data, stock status, and sourcing information for: 25-8844-7
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Federal Supply Group

Aerospace Craft and Structural Components

Federal Supply Classification

1560 Airframe Structural Components

National Stock Number

1560-01-645-4221

Item Name Code

41027

Assigment Date

06/16/2015 (11 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

1560-01-645-4221, aircraft stiffener rib

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
25-8844-7	Aircraft Stiffener Rib

FAQs

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

What is the FSCG of the NSN 1560-01-645-4221?

The FSCG of the NSN 1560-01-645-4221 is 1560

Does the NSN 1560-01-645-4221 have a Schedule B code assigned?

Yes, the Schedule B code is 8803909060

Does NSN 1560-01-645-4221 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 1560-01-645-4221 contain precious materials?

Item does not contain precious metal.

Does NSN 1560-01-645-4221 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 1560-01-645-4221 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Tue, Jun 16, 2015