7R77

View detailed technical data, stock status, and sourcing information for: 7R77
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-169-0765

Item Name Code

06672

Assigment Date

01/08/1971 (55 years ago)

An open coiled spring, wound in various forms and from different shapes and types of materials and finished at the ends, designed to provide resistance to compression forces. Excludes:springs designed for thermal actuation (springs in which the torsion forces are designed to be counteracted by changes in temperature) and spring, reinforcing, hose.

hexagon head style, right-hand thread direction, 1.155 inches minimum and 1.160 inches maximum fastener length, 0.820 inches nominal thread length, 1a 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: 1a
Thread Direction: right-hand
Thread Length: 0.820 inches nominal
Fastener Length: 1.155 inches minimum and 1.160 inches maximum
Head Style: hexagon
Head Height: 0.240 inches minimum and 0.250 inches maximum
Width Between Flats: 0.5545 inches minimum and 0.5625 inches maximum
Point Length: 0.160 inches minimum and 0.170 inches maximum
Point Diameter: 0.265 inches minimum and 0.270 inches maximum
Point Style: dog
Internal Drive Style: w/o internal drive
Nominal Thread Diameter: 0.375 inches
Features Provided: casehardened
Thread Quantity Per Inch: 24
Hardness Rating: 498.0 vickers or firth diamond pyramid minimum and 560.0 vickers or firth diamond pyramid maximum overall
Material: steel overall
Material Document And Classification: sta5,v 18a,k3339 mfr ref single material response overall
Surface Treatment: phosphate overall
Surface Treatment Document And Classification: def.29,class 1,k3339 mfr ref single treatment response overall
Thread Series Designator: unf

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
7R77	Setscrew
D5E9208-161	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-169-0765?

The FSCG of the NSN 5305-00-169-0765 is 5305

Does the NSN 5305-00-169-0765 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-169-0765 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 5305-00-169-0765 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-169-0765 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 5305-00-169-0765 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Jan 8, 1971