3/8-16UNC-3A X 7/8

View detailed technical data, stock status, and sourcing information for: 3/8-16UNC-3A X 7/8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-300-3973

Item Name Code

18257

Assigment Date

05/14/1989 (37 years ago)

A bent hollow item, welded or seamless. It has a round, square or any other cross section, with a continuous periphery. It is primarily designed to convey fluids, gases and/or semisolids. Excludes:items of circular cross section which conform in dimensional characteristics to pipe, metallic; elbow, pipe; elbow, tube; bend, electrical conduit; bend, pipe, return; and bend, tube, return. For items with end fittings on one or both ends, see tube assembly, metal.

16 thread quantity per inch, hexagon head style, 0.375 inches nominal thread diameter, finished head features provided, 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
Head Style: hexagon
Nominal Thread Diameter: 0.375 inches
Features Provided: finished head
Thread Quantity Per Inch: 16
Hardness Rating: 24.0 rockwell c minimum overall
Criticality Code Justification: zzzw
Material: nickel alloy overall
Material Document And Classification: qq-n-286,class a fed spec single material response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: i type
Departure From Cited Document: material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

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
3/8-16UNC-3A X 7/8	Hexagon Head Cap Screw
3/8-16UNC-3A X 7/8L1	Hexagon Head Cap Screw
GR500 (QQ-N-286)	Hexagon Head Cap Screw
GR500 (QQ-N-286)L1	Hexagon Head Cap Screw
MIL-DTL-1222 TY1 GR500	Hexagon Head Cap Screw
MIL-DTL-1222 TY1 GR500L1	Hexagon Head Cap Screw
TYPE 1 3/8-16UNC-3A X 7/8LG	Hexagon Head Cap Screw
TYPE 1 3/8-16UNC-3A X 7/8LGL1	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-300-3973?

The FSCG of the NSN 5305-01-300-3973 is 5305

Does the NSN 5305-01-300-3973 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-300-3973 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 5305-01-300-3973 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-300-3973 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 5305-01-300-3973 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sun, May 14, 1989