2.5-4.5UNC-2AX5.00NICUAL

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-641-7679

Item Name Code

18257

Assigment Date

02/02/2015 (11 years ago)

2a thread class, right-hand thread direction, 3.50 inches nominal fastener length, hexagon head style, 6.423 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: 6.423 inches nominal
Fastener Length: 3.50 inches nominal
Head Style: hexagon
Head Height: 1.423 inches nominal
Width Between Flats: 3.380 inches nominal
Nonstandard Thread Pitch Diameter: +2.250 to 2.255 inches
Thread Quantity Per Inch: 4.50
Criticality Code Justification: zzzx
Material: nickel alloy overall
Thread Series Designator: unc
Departure From Cited Designator: material controlled iaw ss800-ag-man-010/p-9290 system certification produres and criteria manual for deep submergence systems; critical item for safety and survival of deep submergence research and rescue vehicles as differentiated by special test features

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
2.5-4.5UNC-2AX5.00NICUAL	Hexagon Head Cap Screw
2.5-4.5UNC-2AX5.00NICUALD4	Hexagon Head Cap Screw
501-7627541 ITEM 005	Hexagon Head Cap Screw
501-7627541 ITEM 005D4	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-641-7679?

The FSCG of the NSN 5305-01-641-7679 is 5305

Does the NSN 5305-01-641-7679 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-641-7679 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 5305-01-641-7679 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-641-7679 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 5305-01-641-7679 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Mon, Feb 2, 2015