5305-01-048-6597

Find complete technical information, availability, and procurement data for: 5305-01-048-6597
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-048-6597

Item Name Code

29294

Assigment Date

10/02/1977 (48 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

0.985 inches minimum and 1.015 inches maximum fastener length, 0.375 inches nominal thread length, flat countersunk head style, right-hand thread direction, 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
Thread Direction: right-hand
Thread Length: 0.375 inches nominal
Fastener Length: 0.985 inches minimum and 1.015 inches maximum
Head Style: flat countersunk
Head Diameter: 0.429 inches minimum and 0.477 inches maximum
Grip Diameter: 0.3110 inches minimum and 0.3120 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.615 inches minimum and 0.635 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Material: steel comp e4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 5322 assn std 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty2 cl2 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
ASE50286-22	Close Tolerance Screw
LS15237-5-10	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-048-6597?

The FSCG of the NSN 5305-01-048-6597 is 5305

Does the NSN 5305-01-048-6597 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-048-6597 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 5305-01-048-6597 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-048-6597 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 5305-01-048-6597 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sun, Oct 2, 1977