91400A058

View detailed technical data, stock status, and sourcing information for: 91400A058
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-054-5639

Item Name Code

06657

Assigment Date

01/01/1961 (65 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, 2a thread class, pan head style, 0.375 inches nominal fastener length, 0.339 inches minimum and 0.375 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: 0.339 inches minimum and 0.375 inches maximum
Fastener Length: 0.375 inches nominal
Head Style: pan
Head Diameter: 0.155 inches minimum and 0.167 inches maximum
Head Height: 0.053 inches minimum and 0.062 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 56
Minimum Tensile Strength: 80000 pounds per square inch
Screw Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
Screw Material Document And Classification: 66 fed std all material responses
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-103-9679	No Name Available	09/01/1982
5305-00-282-8651	No Name Available	09/14/1966
5305-00-638-3822	No Name Available	11/05/1969
5305-00-688-1508	No Name Available	05/23/1967
5305-00-727-4657	No Name Available	11/25/2003
5305-00-754-1691	No Name Available	07/06/1998
5305-00-811-4602	No Name Available	10/07/1966
5305-01-072-1076	No Name Available	09/01/1980

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FAQs

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

What is the FSCG of the NSN 5305-00-054-5639?

The FSCG of the NSN 5305-00-054-5639 is 5305

Does the NSN 5305-00-054-5639 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-054-5639 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 5305-00-054-5639 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-054-5639 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 5305-00-054-5639 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961