5305-01-270-8513

Close Tolerance Screw

Find complete technical information, availability, and procurement data for NSN 5305-01-270-8513 All details are based on official government and industry records to support accurate and compliant procurement.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-270-8513

Item Name Code

29294

Assigment Date

01/14/1988 (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.

right-hand thread direction, 3a thread class, flat countersunk head style, 0.378 inches minimum and 0.428 inches maximum thread length, 0.826 inches minimum and 0.856 inches maximum fastener length

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.378 inches minimum and 0.428 inches maximum
Fastener Length: 0.826 inches minimum and 0.856 inches maximum
Head Style: flat countersunk
Head Diameter: 0.350 inches minimum and 0.399 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.428 inches minimum and 0.448 inches maximum
Features Provided: dry film lubricant
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: aluminum and chromate overall
Surface Treatment Document And Classification: mil-c-83488 ty 2 cl 3 mil spec single treatment response overall
Thread Series Designator: unjf

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Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
Demilitarization
Criticality
Federal Item Identification Guide
Precious Metals Indicator
Pseudo Item Name Code
Hazardous Material Indicator
Schedule B Code

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
National Motor Freight Classification Item Number
National Motor Freight Classification Sub-Item Number
Uniform Freight Classification Item Number
National Motor Freight Class Rating
Water Commodity
Type of Cargo
Special Hand
Air Dimension
Air Commodity
National Motor Freight Description

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 5305-01-270-8513

What is the FSCG of the NSN 5305-01-270-8513?

The FSCG of the NSN 5305-01-270-8513 is 5305

Does the NSN 5305-01-270-8513 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-270-8513 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 5305-01-270-8513 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-270-8513 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 5305-01-270-8513 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Jan 14, 1988