288105-A

View detailed technical data, stock status, and sourcing information for: 288105-A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-175-7541

Item Name Code

06657

Assigment Date

04/05/1984 (42 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.

hexagon head style, 1.375 inches nominal thread length, right-hand thread direction, 2a thread class, 3.250 inches nominal 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: 2a
Thread Direction: right-hand
Thread Length: 1.375 inches nominal
Fastener Length: 3.250 inches nominal
Head Style: hexagon
Head Height: 0.348 inches minimum and 0.371 inches maximum
Width Between Flats: 0.798 inches minimum and 0.812 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.562 inches
Thread Quantity Per Inch: 12
Screw Material: steel
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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-987-1132	No Name Available	02/01/1995

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
288105	Machine Screw
288105-A	Machine Screw
288105A	Machine Screw
40-0001372	Machine Screw
40-3101152	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-175-7541?

The FSCG of the NSN 5305-01-175-7541 is 5305

Does the NSN 5305-01-175-7541 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-175-7541 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 5305-01-175-7541 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-175-7541 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 5305-01-175-7541 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Thu, Apr 5, 1984