AB2600A5

View detailed technical data, stock status, and sourcing information for: AB2600A5
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-221-3491

Item Name Code

06657

Assigment Date

11/28/1985 (40 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.247 inches minimum and 0.342 inches maximum thread length, watertight head style, 0.297 inches minimum and 0.342 inches maximum fastener length, 2a thread class, right-hand thread direction

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: 0.247 inches minimum and 0.342 inches maximum
Fastener Length: 0.297 inches minimum and 0.342 inches maximum
Head Style: watertight
Head Diameter: 0.270 inches minimum and 0.285 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
Minimum Tensile Strength: 125000 pounds per square inch
Special Features: furnished with rubbero ring and polytetrafluoroethylene washer
Thread Series Designator: unc

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
AB2600-A5	Machine Screw
AB2600A5	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-221-3491?

The FSCG of the NSN 5305-01-221-3491 is 5305

Does NSN 5305-01-221-3491 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 5305-01-221-3491 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-221-3491 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 5305-01-221-3491 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Thu, Nov 28, 1985