343-0310-000

View detailed technical data, stock status, and sourcing information for: 343-0310-000
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-637-1103

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

0.438 inches nominal fastener length, pan head style, 0.376 inches minimum and 0.438 inches maximum thread 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: 0.376 inches minimum and 0.438 inches maximum
Fastener Length: 0.438 inches nominal
Head Style: pan
Head Diameter: 0.306 inches minimum and 0.322 inches maximum
Head Height: 0.105 inches minimum and 0.115 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 57000 pounds per square inch
Screw Material: copper alloy
Screw Material Document And Classification: qq-b-626 fed spec single material response or qq-w-321 fed spec single material response
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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-013-3237	No Name Available	03/03/1974
5305-00-151-2882	No Name Available	03/03/1974
5305-00-206-4156	No Name Available	09/01/1982
5305-00-208-7891	No Name Available	01/15/1974
5305-00-264-0135	No Name Available	03/25/1974
5305-00-340-3851	No Name Available	06/01/1976
5305-00-637-1117	No Name Available	07/01/1976
5305-00-639-6339	No Name Available	07/01/1979
5305-00-639-6527	No Name Available	09/01/1982
5305-00-801-7074	No Name Available	03/08/1974
5305-00-839-2095	No Name Available	11/01/1983
5305-00-843-7060	No Name Available	11/17/1967
5305-00-888-0489	No Name Available	05/20/1967
5305-00-903-4372	No Name Available	06/01/1976

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
15265 BLK.OXIDE	Machine Screw
15265 BLK.OXIDEADX	Machine Screw
343-0310-000	Machine Screw
MS35214-41	Machine Screw
N81P15007V	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-637-1103?

The FSCG of the NSN 5305-00-637-1103 is 5305

Does the NSN 5305-00-637-1103 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-637-1103 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 5305-00-637-1103 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-637-1103 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 5305-00-637-1103 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963