5305-01-493-2878

Find complete technical information, availability, and procurement data for: 5305-01-493-2878
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-493-2878

Item Name Code

06657

Assigment Date

12/26/2001 (24 years ago)

A straight shaft having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (o.o25 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove (s), keyway(s), splines, threads, or holes. It is not designed for use in aligning by fitting into corresponding holes of another item. It may be drilled for lubricating holes. For items having an integral gear(s) or worm(s), see gearshaft (as modified). For items designed to support rotating members see axle(1), straight. For items not having the above conditions see pin, straight, headless. For items having machined ends which constitute steps see shaft(1), shouldered; axle(1), shouldered; and bolt, fluid passage.

slot internal drive style, 0.750 inches nominal fastener length, flat countersunk head style, 0.312 inches nominal thread diameter, 0.559 inches nominal thread length

Product Characteristics

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

Thread Length: 0.559 inches nominal
Fastener Length: 0.750 inches nominal
Head Style: flat countersunk
Internal Drive Style: slot
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Askewed Head Angle: 82.0 degrees maximum
Part Name Assigned By Controlling Agency: screw,machine flathead plastic
Screw Material: plastic polyamide (nylon)
Special Features: item is a torlon countersunk flat head machine screw; material: general-purpose polyamide-imide (torlon) grade 4203 = extruded rod, and 4203l = injection molded; workmanship - screws shall show no evidence of cross threading or multilation; thread length - full form threads shall extend to within two threads of the bearing surface of the head or closer if practicable; marking shall be in accordance with mil-std-130; quality assurance provisions
Purchase Description Identification: 4y054-003 008913
Thread Series Designator: unc
Specification/Standard Data: 4y054-003-008913 manufacturers specification control

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
ATS001-31C-12-FHS-L	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-493-2878?

The FSCG of the NSN 5305-01-493-2878 is 5305

Does the NSN 5305-01-493-2878 have a Schedule B code assigned?

Yes, the Schedule B code is 3926909987

Does NSN 5305-01-493-2878 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 5305-01-493-2878 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-493-2878 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 5305-01-493-2878 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Wed, Dec 26, 2001