ST9M551-181-4

View detailed technical data, stock status, and sourcing information for: ST9M551-181-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-131-8525

Item Name Code

29785

Assigment Date

05/18/1982 (44 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.

special securing device type, flat cross-sectional shape style, 0.040 inches nominal body thickness, round, one hole peripheral shape style, 1.810 inches nominal outside diameter

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: flat
Outside Diameter: 1.810 inches nominal
Peripheral Shape Style: round, one hole
Body Thickness: 0.040 inches nominal
Securing Device Type: special
Bolt Hole Centerline To Nearest Edge Distance: 0.905 inches nominal
End Item Identification: aircraft model f-18

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
ST9M551-181-4	Access Cover

FAQs

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

What is the FSCG of the NSN 5340-01-131-8525?

The FSCG of the NSN 5340-01-131-8525 is 5340

Does NSN 5340-01-131-8525 require demilitarization?

Usml items - mutilation to the point of scrap required worldwide. (note 7).

Does NSN 5340-01-131-8525 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-131-8525 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 5340-01-131-8525 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Tue, May 18, 1982