NAS557-20C

View detailed technical data, stock status, and sourcing information for: NAS557-20C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-579-6218

Item Name Code

33729

Assigment Date

01/01/1963 (63 years ago)

An item of any peripheral shape having flanges or groove(s) on its outer perimeter to provide a self-retaining characteristic when inserted in a hole, clamp, or the like. Designed for the purpose of protecting and/or insulating wires, cables and other items passing through it. Excludes:bushing, nonmetallic; bumper; and insulator bushing.

0.500 inches nominal overall height, 1.250 inches nominal hole diameter, 0.045 inches minimum and 0.065 inches maximum flange thickness, round grommet style, 0.134 inches minimum and 0.144 inches maximum groove width

Product Characteristics

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

Hole Diameter: 1.250 inches nominal
Groove Width: 0.134 inches minimum and 0.144 inches maximum
Flange Thickness: 0.045 inches minimum and 0.065 inches maximum
Overall Height: 0.500 inches nominal
Grommet Style: round
Large Flange Outside Diameter: 1.497 inches minimum and 1.517 inches maximum
Groove Outside Diameter: 1.351 inches nominal
Grommet Construction Type: split
Material: plastic polyamide (nylon) overall
Material Document And Classification: mil-m-20693 ty1 mil spec single material response overall
Specification/Standard Data: 80205-nas557 professional/industrial association standard

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
NAS557-20C	Nonmetallic Grommet

FAQs

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

What is the FSCG of the NSN 5325-00-579-6218?

The FSCG of the NSN 5325-00-579-6218 is 5325

Does the NSN 5325-00-579-6218 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-579-6218 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 5325-00-579-6218 contain precious materials?

Precious metal content is unknown

Does NSN 5325-00-579-6218 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 5325-00-579-6218 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963