5305-01-331-7581

Find complete technical information, availability, and procurement data for: 5305-01-331-7581
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-331-7581

Item Name Code

33044

Assigment Date

12/27/1990 (35 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

knurled no. 2 head style, 1.047 inches minimum and 1.077 inches maximum fastener length, 2a thread class, right-hand thread direction, 0.235 inches minimum and 0.265 inches maximum 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 Class: 2a
Thread Direction: right-hand
Thread Length: 0.235 inches minimum and 0.265 inches maximum
Fastener Length: 1.047 inches minimum and 1.077 inches maximum
Head Style: knurled no. 2
Head Diameter: 0.405 inches minimum and 0.425 inches maximum
Head Height: 0.133 inches nominal
Internal Drive Style: cross recess type 1
Material Accommodated Thickness: 0.032 inches minimum and 0.063 inches maximum
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Material: steel comp 302 spring
Material: steel comp 301 secondary washer
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 fastener
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 primary washer
Material: steel comp 304 stand-off
Material Document And Classification: astm a580 assn std single material response spring
Material Document And Classification: mil-s-23195 mil spec single material response stand-off
Material Document And Classification: mil-s-5059 mil spec single material response secondary washer
Surface Treatment: oxide primary washer
Surface Treatment: oxide stand-off
Surface Treatment: oxide secondary washer
Surface Treatment: passivate spring
Surface Treatment: oxide fastener
Surface Treatment Document And Classification: mil-c-13924 cl 2 mil spec single treatment response fastener
Surface Treatment Document And Classification: mil-c-13924 cl 2 mil spec single treatment response primary washer
Surface Treatment Document And Classification: mil-c-13924 cl 2 mil spec single treatment response secondary washer
Surface Treatment Document And Classification: mil-c-13924 cl 2 mil spec single treatment response stand-off
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response spring
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
868197-0110	Panel Screw Assembly
868197-110	Panel Screw Assembly
FT1056-110A	Panel Screw Assembly

FAQs

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

What is the FSCG of the NSN 5305-01-331-7581?

The FSCG of the NSN 5305-01-331-7581 is 5305

Does the NSN 5305-01-331-7581 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-331-7581 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 5305-01-331-7581 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-331-7581 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 5305-01-331-7581 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Dec 27, 1990