STD 866-2

View detailed technical data, stock status, and sourcing information for: STD 866-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-447-1221

Item Name Code

41756

Assigment Date

07/26/1997 (29 years ago)

An item of various shapes and cross sections, usually flanged and designed to fit over a rod, shaft, or the like, for the purpose of encasing and posititioning a seal, plain encased or a seal, plain. The flange is usually drilled for stud or bolt mounting. Item does not include the seal. Excludes:retainer, packing.

0.220 inches minimum and 0.280 inches maximum fastener length, pan no. 2 head style, 0.045 inches minimum and 0.065 inches maximum head height, slot internal drive style, 0.155 inches minimum and 0.180 inches maximum head diameter

Product Characteristics

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

Fastener Length: 0.220 inches minimum and 0.280 inches maximum
Head Style: pan no. 2
Head Diameter: 0.155 inches minimum and 0.180 inches maximum
Head Height: 0.045 inches minimum and 0.065 inches maximum
Internal Drive Style: slot
Nonmachine Thread Style: double flute (type f)
Nonmachine Nominal Thread Diameter: 0.086 inches
Material: steel overall
Surface Treatment: zinc overall

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
STD 866-2	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-447-1221?

The FSCG of the NSN 5305-01-447-1221 is 5305

Does the NSN 5305-01-447-1221 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-447-1221 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 5305-01-447-1221 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-447-1221 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 5305-01-447-1221 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Sat, Jul 26, 1997