170-325

View detailed technical data, stock status, and sourcing information for: 170-325

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170-325
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-194-0413
Item Name Code
18257
Assigment Date
11/09/1984 (41 years ago)

2a thread class, 2.500 inches nominal fastener length, 2.357 inches nominal thread length, right-hand thread direction, 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 Class
2a
Thread Direction
right-hand
Thread Length
2.357 inches nominal
Fastener Length
2.500 inches nominal
Head Style
hexagon
Head Height
0.281 inches nominal
Width Between Flats
0.625 inches nominal
Nominal Thread Diameter
0.438 inches
Thread Quantity Per Inch
14
Minimum Tensile Strength
120000 pounds per square inch
Hardness Rating
23.0 rockwell c minimum and 32.0 rockwell c maximum overall
Material
steel comp 1040 overall
Material Document And Classification
sae assn std single material response overall
Surface Treatment
zinc and dichromate overall
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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-01-201-9370 No Name Available 08/09/1991

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
170-325 Hexagon Head Cap Screw
903-325 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-194-0413?
The FSCG of the NSN 5305-01-194-0413 is 5305
Does the NSN 5305-01-194-0413 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-194-0413 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 5305-01-194-0413 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-194-0413 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 5305-01-194-0413 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Fri, Nov 9, 1984

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