4901-81

View detailed technical data, stock status, and sourcing information for: 4901-81

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4901-81
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-725-7741
Item Name Code
18257
Assigment Date
01/17/2025 (1 year ago)

An item with a transparent pane designed to be mounted in the crew compartment of an aircraft. It protects the pilot(s) and the interior of an aircraft from foreigh matter and allows visibility. It is of a special shape to conform to the contour of the aircraft. It may include a frame, retainer, mounting hardware, and the like. Excludes:glass, laminated and window panel, aircraft.

0.56 inches nominal width between flats, right-hand thread direction, 1.00 inches nominal thread length, 2.00 inches nominal fastener length, hexagon head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction
right-hand
Thread Length
1.00 inches nominal
Fastener Length
2.00 inches nominal
Head Style
hexagon
Width Between Flats
0.56 inches nominal
Nominal Thread Diameter
0.375 inches
Thread Quantity Per Inch
24
Part Name Assigned By Controlling Agency
hex head cap screw
Material
steel overall
Surface Treatment
zinc overall
Thread Series Designator
unf

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
4901-81 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-725-7741?
The FSCG of the NSN 5305-01-725-7741 is 5305
Does the NSN 5305-01-725-7741 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-725-7741 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 5305-01-725-7741 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-725-7741 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 5305-01-725-7741 was assigned to the Federal Catalog?
It was assigned 1 year ago, on Fri, Jan 17, 2025

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