5305-01-122-3186

Find complete technical information, availability, and procurement data for: 5305-01-122-3186
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-122-3186

Item Name Code

06657

Assigment Date

11/19/1981 (44 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.

2a thread class, right-hand thread direction, 0.250 inches nominal fastener length, pan head style, 0.250 inches nominal 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: 0.250 inches nominal
Fastener Length: 0.250 inches nominal
Head Style: pan
Head Diameter: 0.205 inches minimum and 0.219 inches maximum
Head Height: 0.070 inches minimum and 0.080 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Screw Material: steel corrosion resisting
Screw Material Document And Classification: qq-s-763 fed spec single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Special Features: enamel per f-157,36231 fed-std-595 head only
Thread Series Designator: unc
Specification/Standard Data: 96906-ms51957-13 government standard
Departure From Cited Document: modified by pac feat

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
534332-14	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-122-3186?

The FSCG of the NSN 5305-01-122-3186 is 5305

Does the NSN 5305-01-122-3186 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-122-3186 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 5305-01-122-3186 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-122-3186 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 5305-01-122-3186 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, Nov 19, 1981