5305-01-261-1868

Find complete technical information, availability, and procurement data for: 5305-01-261-1868
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-261-1868

Item Name Code

06657

Assigment Date

08/10/1987 (39 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

right-hand thread direction, 0.688 inches nominal fastener length, double hexagon w/ hole head style, 3a thread class, 0.606 inches minimum and 0.626 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: 3a
Thread Direction: right-hand
Thread Length: 0.606 inches minimum and 0.626 inches maximum
Fastener Length: 0.688 inches nominal
Head Style: double hexagon w/ hole
Head Height: 0.250 inches nominal
Width Between Flats: 0.212 inches minimum and 0.220 inches maximum
Extended Washer Diameter: 0.312 inches nominal
Extended Washer Thickness: 0.030 inches minimum and 0.040 inches maximum
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 36
Hardness Rating: 42.0 rockwell c minimum and 46.0 rockwell c maximum
Screw Material: steel comp 601
Screw Material Document And Classification: ams 6304 assn std single material response
Screw Surface Treatment: nickel and cadmium and chromate
Screw Surface Treatment Document And Classification: ams 2416 assn std all treatment responses
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
10113606	Machine Screw
5305PL0213312	Machine Screw
MS9207-09	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-261-1868?

The FSCG of the NSN 5305-01-261-1868 is 5305

Does the NSN 5305-01-261-1868 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-261-1868 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 5305-01-261-1868 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-261-1868 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 5305-01-261-1868 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Mon, Aug 10, 1987