4M277-4

View detailed technical data, stock status, and sourcing information for: 4M277-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-01-182-9166

Item Name Code

33729

Assigment Date

06/30/1984 (42 years ago)

A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes:all covers not specifically designed to provide access for the purposes listed above.

0.250 inches nominal hole diameter, 0.410 inches nominal overall height, round grommet style, kidd class ddg;spruance class dd (963);landing craft air cushion (lcac);dry deck shelter;forrestal class cv;nimitz class cvn;oliver perry class ffg;wasp class lhd;emory s. land class as end item identification, 0.062 inches nominal flange thickness

Product Characteristics

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

Hole Diameter: 0.250 inches nominal
Flange Thickness: 0.062 inches nominal
Overall Height: 0.410 inches nominal
End Item Identification: kidd class ddg;spruance class dd (963);landing craft air cushion (lcac);dry deck shelter;forrestal class cv;nimitz class cvn;oliver perry class ffg;wasp class lhd;emory s. land class as
Grommet Style: round
Large Flange Outside Diameter: 0.470 inches nominal
Groove Outside Diameter: 0.340 inches minimum and 0.375 inches maximum
Grommet Construction Type: solid
Special Features: locking tabs on od of body
Color: black overall
Material: plastic polyamide (nylon) overall

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
14016-020	Nonmetallic Grommet
4M277-4	Nonmetallic Grommet
A3006813-1	Nonmetallic Grommet

FAQs

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

What is the FSCG of the NSN 5325-01-182-9166?

The FSCG of the NSN 5325-01-182-9166 is 5325

Does the NSN 5325-01-182-9166 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-01-182-9166 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 5325-01-182-9166 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-01-182-9166 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 5325-01-182-9166 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Jun 30, 1984