NTA11551-4C

View detailed technical data, stock status, and sourcing information for: NTA11551-4C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-042-8874

Item Name Code

15933

Assigment Date

06/17/1977 (49 years ago)

0.057 inches minimum and 0.069 inches maximum material thickness, 0.332 inches minimum and 0.352 inches maximum recess diameter, 0.475 inches minimum and 0.495 inches maximum outside diameter, 36.0 rockwell c minimum and 40.0 rockwell c maximum hardness rating, 0.250 inches minimum and 0.261 inches maximum hole diameter

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 minimum and 0.261 inches maximum
Outside Diameter: 0.475 inches minimum and 0.495 inches maximum
Recess Diameter: 0.332 inches minimum and 0.352 inches maximum
Material Thickness: 0.057 inches minimum and 0.069 inches maximum
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Recess Angle: 90.0 degrees minimum and 100.0 degrees maximum
Material: steel comp 4130 or steel comp 8630 or steel comp 4135 overall
Material Document And Classification: mil-s-18729 mil spec 1st material response or mil-s-18728 mil spec 2nd material response or mil-s-18733 mil spec 3rd material response overall
Surface Treatment: nickel and cadmium overall
Surface Treatment Document And Classification: ams 2416 assn std single treatment response overall
Style Designator: recessed
Specification/Standard Data: 81205-bacw10bp manufacturers 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
BACW10BP4C	Recessed Washer
NTA11551-4C	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-01-042-8874?

The FSCG of the NSN 5310-01-042-8874 is 5310

Does the NSN 5310-01-042-8874 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-042-8874 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 5310-01-042-8874 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-042-8874 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 5310-01-042-8874 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Fri, Jun 17, 1977