5305-00-250-5478

Find complete technical information, availability, and procurement data for: 5305-00-250-5478
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-250-5478

Item Name Code

06660

Assigment Date

11/19/1969 (56 years ago)

2a thread class, round head style, 0.260 inches maximum head diameter, 0.391 inches minimum thread length, 0.500 inches nominal fastener length

Product Characteristics

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

Thread Class: 2a
Thread Length: 0.391 inches minimum
Fastener Length: 0.500 inches nominal
Head Style: round
Head Diameter: 0.260 inches maximum
Head Height: 0.103 inches maximum
Washer Quantity: 2
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Secondary Washer Relationship To Primary Washer: not identical
Secondary Washer Style: flat
Primary Washer Style: recessed
Special Features: gray epoxy finish on head and sides of washer assembly
Thread Series Designator: unc

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
3675-6R8-3520	Assembled Washer Screw
CPA4097-6R8-3520	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-250-5478?

The FSCG of the NSN 5305-00-250-5478 is 5305

Does NSN 5305-00-250-5478 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 5305-00-250-5478 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-250-5478 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 5305-00-250-5478 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Nov 19, 1969