3771U

View detailed technical data, stock status, and sourcing information for: 3771U

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3771U
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-685-7443
Item Name Code
16282
Assigment Date
01/01/1963 (63 years ago)

0.375 inches nominal fastener length, 0.375 inches maximum thread length, fillister head style, 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
0.375 inches maximum
Fastener Length
0.375 inches nominal
Head Style
fillister
Head Diameter
0.292 inches minimum and 0.313 inches maximum
Head Height
0.123 inches minimum and 0.130 inches maximum
Locking Feature
pellet threads
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.190 inches
Thread Quantity Per Inch
24
Part Name Assigned By Controlling Agency
navy special project
Material
steel comp 1010 overall
Material Document And Classification
qq-s-630 fed spec single material response or qq-s-631 fed spec single material response or qq-s-634 fed spec single material response overall
Surface Treatment
cadmium 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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-171-2563 No Name Available 04/01/1992
5305-00-688-1632 No Name Available 10/01/1982
6115-00-786-8055 No Name Available 01/01/1962

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
3771U Socket Head Cap Screw
LP500-10-6M Socket Head Cap Screw
NK500-10-6 Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-685-7443?
The FSCG of the NSN 5305-00-685-7443 is 5305
Does the NSN 5305-00-685-7443 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-685-7443 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 5305-00-685-7443 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-685-7443 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 5305-00-685-7443 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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