NAS51-212

View detailed technical data, stock status, and sourcing information for: NAS51-212
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5325 Fastening Devices

National Stock Number

5325-00-663-1246

Item Name Code

07623

Assigment Date

01/01/1963 (63 years ago)

rectangular cross-sectional shape style, external ring style, 1.939 inches minimum and 1.979 inches maximum inside diameter, 0.075 inches minimum and 0.081 inches maximum major thickness, not casehardened casehardening indicator

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: rectangular
Inside Diameter: 1.939 inches minimum and 1.979 inches maximum
Casehardening Indicator: not casehardened
Major Thickness: 0.075 inches minimum and 0.081 inches maximum
Ring Style: external
Usage Design: external
Material Hardness Rating: 47.0 rockwell c minimum and 52.0 rockwell c maximum
Material: steel comp 1066 or steel comp 1069 or steel comp 1070 or steel comp 1072 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1090
Material Document And Classification: fed std 66 aisi 1066 or 1069 or 1070 or 1072 or 1074 or 1075 or 1078 or 1090 fed std single material response
Surface Treatment: cadmium and chromate

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5340-00-074-4495	No Name Available	11/06/1967

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
3100-212-ST-CD	Retaining Ring
5100-212	Retaining Ring
5100-212-S-MD	Retaining Ring
5100-212MD	Retaining Ring
MIL-R-21248 TY1 CL 2	Retaining Ring
MS16624-1212	Retaining Ring
MS16624-212	Retaining Ring
NAS51-212	Retaining Ring
NAS670-212	Retaining Ring
Q4131	Retaining Ring
R271NAA0212NN056NNPF1	Retaining Ring

FAQs

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

What is the FSCG of the NSN 5325-00-663-1246?

The FSCG of the NSN 5325-00-663-1246 is 5325

Does the NSN 5325-00-663-1246 have a Schedule B code assigned?

Yes, the Schedule B code is 9606100000

Does NSN 5325-00-663-1246 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 5325-00-663-1246 contain precious materials?

Item does not contain precious metal.

Does NSN 5325-00-663-1246 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 5325-00-663-1246 was assigned to the Federal Catalog?

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