2505604-7

View detailed technical data, stock status, and sourcing information for: 2505604-7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-040-0428

Item Name Code

13393

Assigment Date

04/30/1977 (49 years ago)

0.315 inches minimum and 0.321 inches maximum hole diameter, round peripheral shape style, round center hole shape style, rectangular cross-sectional shape style, 0.057 inches minimum and 0.067 inches maximum thickness

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
Hole Diameter: 0.315 inches minimum and 0.321 inches maximum
Peripheral Shape Style: round
Center Hole Shape Style: round
Thickness: 0.057 inches minimum and 0.067 inches maximum
Overall Diameter: 0.472 inches minimum and 0.478 inches maximum
Hardness Rating: 27.0 rockwell c minimum and 35.0 rockwell c maximum
Criticality Code Justification: zzzw
Material: steel comp 4130 or steel comp 4140h overall
Material Document And Classification: aisi4130 assn std 1st material response or aisi4140h assn std 2nd material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,typ 2,class 2 fed spec single treatment response overall
Departure From Cited Document: as modified by special quality control testing for mk 48 torpedo

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-177-1371	No Name Available	01/01/1983

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
2505604-7	Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-01-040-0428?

The FSCG of the NSN 5310-01-040-0428 is 5310

Does the NSN 5310-01-040-0428 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-040-0428 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 5310-01-040-0428 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-040-0428 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 5310-01-040-0428 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sat, Apr 30, 1977