5999-01-453-4956

Find complete technical information, availability, and procurement data for: 5999-01-453-4956
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5999 Miscellaneous Electrical and Electronic Components

National Stock Number

5999-01-453-4956

Item Name Code

20281

Assigment Date

03/03/1998 (28 years ago)

A flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole having a solid rectangular cross-section use disk, solid, plain. For round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see spacer, sleeve. The thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. For items with a thickness less than those indicated above, see shim. For items with one hole centrally located conforming to the above dimensional criteria use washer, flat or spacer, ring as applicable. When thickness and/or outside_diameter_or_smallest_overall_outside_dimension_is_designated_as_a_tolerance/dimension_the_maximum_dimension_will_be_used_to_determine_compliance._excludes:gasket;_insulator_(as_modified)_and_mounting_pad,_electrical-electronic_component.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1.682 inches nominal aperture diameter, 1.937 inches nominal overall length, mesh and metal cross-sectional shape style, 0.152 inches nominal hole diameter, 1.937 inches nominal overall width

Product Characteristics

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

Cross-Sectional Shape Style: mesh and metal
Hole Diameter: 0.152 inches nominal
Overall Length: 1.937 inches nominal
Overall Width: 1.937 inches nominal
Aperture Diameter: 1.682 inches nominal
Outside Corner Radius: 0.218 inches nominal
Cross Section Outside Diameter: 0.047 inches nominal
Cross-Sectional Height: 0.031 inches nominal
Minor Height: 0.031 inches nominal
Bolt Hole Quantity: 4
Material: aluminum alloy 6062 and copper alloy 172 emi/rfi conductor
Material: rubber silicone class q environmental seal
Material Document And Classification: qq-a-250/11 fed spec 1st material response and astm b194, ca 172 assn std 2nd material response emi/rfi conductor
Surface Treatment: chromate and tin emi/rfi conductor
Style Designator: non-circular

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
481148-09	Electronic Shielding Gasket
SSCG-B-20-0	Electronic Shielding Gasket

FAQs

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

What is the FSCG of the NSN 5999-01-453-4956?

The FSCG of the NSN 5999-01-453-4956 is 5999

Does the NSN 5999-01-453-4956 have a Schedule B code assigned?

Yes, the Schedule B code is 8543909000

Does NSN 5999-01-453-4956 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 5999-01-453-4956 contain precious materials?

Item does not contain precious metal.

Does NSN 5999-01-453-4956 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 5999-01-453-4956 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Tue, Mar 3, 1998