720213-50

View detailed technical data, stock status, and sourcing information for: 720213-50
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-284-0856

Item Name Code

33044

Assigment Date

08/18/1988 (38 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

0.878 inches minimum and 0.907 inches maximum fastener length, 0.436 inches minimum and 0.466 inches maximum head diameter, 3a thread class, right-hand thread direction, knurled no. 1 head style

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Fastener Length: 0.878 inches minimum and 0.907 inches maximum
Head Style: knurled no. 1
Head Diameter: 0.436 inches minimum and 0.466 inches maximum
Head Height: 0.275 inches minimum and 0.305 inches maximum
Internal Drive Style: cross recess type 1
Material Accommodated Thickness: 0.094 inches minimum and 0.155 inches maximum
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Material: aluminum alloy 6061 stand-off
Material: steel comp 302b spring
Material: steel comp 301 primary washer
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 fastener
Material Document And Classification: astm a493 assn std all material responses fastener
Material Document And Classification: astm a580 assn std single material response spring
Material Document And Classification: mil-s-5059 mil spec single material response primary washer
Material Document And Classification: qq-a-225/8 fed spec single material response stand-off
Surface Treatment: anodize stand-off
Surface Treatment: passivate fastener
Surface Treatment: passivate primary washer
Surface Treatment: passivate spring
Surface Treatment Document And Classification: mil-a-8625,type 1 class 1 mil spec single treatment response stand-off
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response fastener
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response primary washer
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response spring
Thread Series Designator: unf

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
720213-50	Panel Screw Assembly
F7500P-10-C-5	Panel Screw Assembly

FAQs

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

What is the FSCG of the NSN 5305-01-284-0856?

The FSCG of the NSN 5305-01-284-0856 is 5305

Does the NSN 5305-01-284-0856 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-284-0856 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 5305-01-284-0856 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-284-0856 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 5305-01-284-0856 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Aug 18, 1988