6-32UNC3A7/16SOCKETHEAD

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-003-4252

Item Name Code

16282

Assigment Date

04/23/1975 (51 years ago)

right-hand thread direction, knurled no. 1 head style, 0.438 inches nominal thread length, 0.438 inches nominal fastener length, 3a thread class

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.438 inches nominal
Fastener Length: 0.438 inches nominal
Head Style: knurled no. 1
Head Diameter: 0.218 inches minimum and 0.226 inches maximum
Head Height: 0.134 inches minimum and 0.138 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.138 inches
Width Across Flats: 0.109 inches minimum and 0.111 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Supplementary Features: fscm 80204-ansi b18.3 table 3 size 6
Thread Series Designator: unc
Specification/Standard Data: 81348-ff-s-86 government specification
Nondefinitive Spec/Std Data: 6 type and 6-32 size and 7/16in. length and 3a class and unc series

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
0.138-32-3AX0.438 HEXSOCKET CRES	Socket Head Cap Screw
6-32-3A X 7/16 HEX SOCKETHD CRES	Socket Head Cap Screw
6-32UNC-3AX0.438CRES	Socket Head Cap Screw
6-32UNC3A7/16SOCKETHEAD	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-003-4252?

The FSCG of the NSN 5305-01-003-4252 is 5305

Does the NSN 5305-01-003-4252 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-003-4252 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 5305-01-003-4252 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-003-4252 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 5305-01-003-4252 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Wed, Apr 23, 1975