5305-01-691-6531

Find complete technical information, availability, and procurement data for: 5305-01-691-6531
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-691-6531

Item Name Code

29294

Assigment Date

10/21/2020 (5 years ago)

A length of nonmetallic hose with fittings on one or both ends. For items without fittings, see hose, nonmetallic. Excludes:hose assembly, air duct; and hose assembly, air duct, air breathing.

0.403 inches nominal thread length, right-hand thread direction, 3a thread class, flat countersunk head style, 1.388 inches minimum and 1.418 inches maximum fastener length

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: 0.403 inches nominal
Fastener Length: 1.388 inches minimum and 1.418 inches maximum
Head Style: flat countersunk
Head Diameter: 0.3988 inches nominal
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style: torque-set ribbed
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.99 inches minimum and 1.01 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: bolt, shear 100 degree flush reduced head
Material: steel comp 4140 or steel comp e4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 overall
Surface Treatment: cadmium and chromate overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nsd1581 professional/industrial association standard

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
NAS1581F4R16	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-691-6531?

The FSCG of the NSN 5305-01-691-6531 is 5305

Does the NSN 5305-01-691-6531 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-691-6531 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 5305-01-691-6531 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-691-6531 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 5305-01-691-6531 was assigned to the Federal Catalog?

It was assigned 5 years ago, on Wed, Oct 21, 2020