5305-01-270-8917

Find complete technical information, availability, and procurement data for: 5305-01-270-8917
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-270-8917

Item Name Code

16282

Assigment Date

01/15/1988 (38 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.

3a thread class, flat chamfer head style, 1.460 inches minimum and 1.500 inches maximum fastener length, right-hand thread direction, 1.335 inches minimum and 1.500 inches maximum thread 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: 1.335 inches minimum and 1.500 inches maximum
Fastener Length: 1.460 inches minimum and 1.500 inches maximum
Head Style: flat chamfer
Head Diameter: 0.550 inches minimum and 0.562 inches maximum
Head Height: 0.368 inches minimum and 0.375 inches maximum
Hole Diameter: 0.061 inches minimum and 0.067 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.312 inches minimum and 0.316 inches maximum
Hole Quantity: 3
Hole Type: drilled
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell c minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Hole Configuration Style: round internal hexagon
Special Features: head may or may not be knurled at manu. option type of knurling optional and may not exceed head dia.
Material: steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp xm-7 or steel comp 384 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unc

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
MS24674-49	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-270-8917?

The FSCG of the NSN 5305-01-270-8917 is 5305

Does the NSN 5305-01-270-8917 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-270-8917 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 5305-01-270-8917 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-270-8917 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 5305-01-270-8917 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Fri, Jan 15, 1988