A3057944-001

View detailed technical data, stock status, and sourcing information for: A3057944-001
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-388-4448

Item Name Code

38089

Assigment Date

03/31/1994 (32 years ago)

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes:laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes:disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

0.2200 inches minimum and 0.2250 inches maximum mounting hole diameter, 2 mounting hole quantity, 0.6500 inches nominal overall height, countersunk mounting hole type, 4.5000 inches nominal overall length

Product Characteristics

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

Overall Length: 4.5000 inches nominal
Overall Height: 0.6500 inches nominal
Mounting Hole Diameter: 0.2200 inches minimum and 0.2250 inches maximum
Mounting Hole Quantity: 2
Mounting Hole Type: countersunk
Material: aluminum alloy 5052
Material Document And Classification: qq-a-250/8 fed spec single material response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-f-14072, e513 mil spec single treatment response

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
A3057944-001	Mounting Bracket

FAQs

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

What is the FSCG of the NSN 5340-01-388-4448?

The FSCG of the NSN 5340-01-388-4448 is 5340

Does NSN 5340-01-388-4448 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 5340-01-388-4448 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-388-4448 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 5340-01-388-4448 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Thu, Mar 31, 1994