5305-01-320-1055

Find complete technical information, availability, and procurement data for: 5305-01-320-1055
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-320-1055

Item Name Code

22846

Assigment Date

05/19/1990 (36 years ago)

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

0.285 inches minimum and 0.330 inches maximum thread length, right-hand thread direction, 3a thread class, hexagon head style, 1.820 inches minimum and 1.860 inches maximum 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: 3a
Thread Direction: right-hand
Thread Length: 0.285 inches minimum and 0.330 inches maximum
Fastener Length: 1.820 inches minimum and 1.860 inches maximum
Head Style: hexagon
Head Height: 0.160 inches nominal
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
Shoulder Diameter: 0.246 inches minimum and 0.247 inches maximum first shoulder
Shoulder Length: 1.530 inches minimum and 1.535 inches maximum first shoulder
Internal Drive Style: w/o internal drive
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 36
Shoulder Shape: round first shoulder
Special Features: relief between head and shoulder; relief between shoulder and thread; point slotted each side 0.035 in. nom width; 0.180 in. nom lg; surface finish on shoulder 32.0 microinches; 63.0 microinches on threads
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std single material response overall
Surface Treatment: chromate first shoulder
Surface Treatment Document And Classification: qq-c-320 cl 2 fed spec single treatment response first shoulder
Thread Series Designator: unjf

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
6310220-002	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-320-1055?

The FSCG of the NSN 5305-01-320-1055 is 5305

Does the NSN 5305-01-320-1055 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-320-1055 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 5305-01-320-1055 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-320-1055 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 5305-01-320-1055 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Sat, May 19, 1990