NAS1580C3H5PY

View detailed technical data, stock status, and sourcing information for: NAS1580C3H5PY
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-664-0311

Item Name Code

29294

Assigment Date

06/02/2017 (9 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

0.6755 inches nominal fastener length, 0.363 inches nominal thread length, right-hand thread direction, 3a thread class, flat countersunk head style

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: 0.363 inches nominal
Fastener Length: 0.6755 inches nominal
Head Style: flat countersunk
Head Diameter: 0.3390 inches minimum and 0.3813 inches maximum
Grip Diameter: 0.2197 inches minimum and 0.2207 inches maximum
Internal Drive Style: high-torque
End Item Identification: b-52 aircraft
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.3125 inches nominal
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: bolt, shear, 100 degree flush head
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response or ams 5853 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416, type ii, class 2 fed spec single treatment response overall
Thread Series Designator: unjf

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
NAS1580C3H5PY	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-664-0311?

The FSCG of the NSN 5305-01-664-0311 is 5305

Does the NSN 5305-01-664-0311 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-664-0311 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 5305-01-664-0311 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-664-0311 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 5305-01-664-0311 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Fri, Jun 2, 2017