7S37-4-13

View detailed technical data, stock status, and sourcing information for: 7S37-4-13
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-827-5263

Item Name Code

29294

Assigment Date

01/01/1963 (63 years ago)

3a thread class, 1.113 inches minimum and 1.143 inches maximum fastener length, 0.291 inches minimum and 0.341 inches maximum thread length, right-hand thread direction, 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: 0.291 inches minimum and 0.341 inches maximum
Fastener Length: 1.113 inches minimum and 1.143 inches maximum
Head Style: flat countersunk
Head Diameter: 0.362 inches minimum and 0.395 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.802 inches minimum and 0.822 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.007 inches minimum and 1.017 inches maximum first hole
Material: steel comp 4130 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec all treatment responses 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
7S37-4-13	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-827-5263?

The FSCG of the NSN 5305-00-827-5263 is 5305

Does the NSN 5305-00-827-5263 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-827-5263 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 5305-00-827-5263 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-827-5263 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 5305-00-827-5263 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963