H677-2401-363

View detailed technical data, stock status, and sourcing information for: H677-2401-363
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5999 Miscellaneous Electrical and Electronic Components

National Stock Number

5999-01-344-0641

Item Name Code

20281

Assigment Date

08/22/1991 (34 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.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

1.985 inches minimum and 2.015 inches maximum overall width, emi cross-sectional shape style, 0.193 inches minimum and 0.213 inches maximum hole diameter, 1.730 inches minimum and 1.770 inches maximum aperture diameter, 1.985 inches minimum and 2.015 inches maximum overall length

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: emi
Hole Diameter: 0.193 inches minimum and 0.213 inches maximum
Overall Length: 1.985 inches minimum and 2.015 inches maximum
Overall Width: 1.985 inches minimum and 2.015 inches maximum
Aperture Diameter: 1.730 inches minimum and 1.770 inches maximum
Outside Corner Radius: 0.154 inches nominal
Center To Center Distance Between Bolt Holes Along Width: 1.552 inches minimum and 1.572 inches maximum
Center To Center Distance Between Bolt Holes Along Length: 1.552 inches minimum and 1.572 inches maximum
Cross-Sectional Height: 0.026 inches nominal
Bolt Hole Quantity: 4
End Item Identification: 1055-01-329-6826 launcher,rocket,arm
Environmental Protection Material Location: throughout rf shielding gasket
Material: copper alloy emi/rfi conductorrubber silicone class q environmental seal
Precious Material And Location: emi/rfi conductive particles silver
Precious Material: silver
Surface Treatment: silver emi/rfi conductor
Style Designator: non-circular
Test Data Document: "81349-mil-g-83528 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Specification/Standard Data: 81349-mil-g-83528/4 government specification

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
569-7067768-159	Electronic Shielding Gasket
569-7067771-363	Electronic Shielding Gasket
569-7067771-63	Electronic Shielding Gasket
H677-2401-363	Electronic Shielding Gasket
M83528/004K029	Electronic Shielding Gasket

FAQs

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

What is the FSCG of the NSN 5999-01-344-0641?

The FSCG of the NSN 5999-01-344-0641 is 5999

Does the NSN 5999-01-344-0641 have a Schedule B code assigned?

Yes, the Schedule B code is 8543909000

Does NSN 5999-01-344-0641 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 5999-01-344-0641 contain precious materials?

Item contains silver.

Does NSN 5999-01-344-0641 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 5999-01-344-0641 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Thu, Aug 22, 1991