5306-01-356-3188

Find complete technical information, availability, and procurement data for: 5306-01-356-3188
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-356-3188

Item Name Code

27851

Assigment Date

04/02/1992 (34 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, dished hexagon head style, right-hand thread direction, 0.613 inches minimum and 0.643 inches maximum fastener length, 0.316 inches nominal 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: 0.316 inches nominal
Fastener Length: 0.613 inches minimum and 0.643 inches maximum
Head Style: dished hexagon
Head Height: 0.125 inches minimum and 0.140 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Locking Feature: patch threads
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.302 inches minimum and 0.322 inches maximum
Thread Quantity Per Inch: 28
Surface Finish: 63.0 microinches bearing surface of head63.0 microinches grip16.0 microinches threads16.0 microinches all shoulders
Special Features: locking element per nas 1283,type,except mat'l. shall be polyethylne terephthate from longlok gardena
Material: plastic polyethylene locking featuretitanium alloy uns r56400 fastener
Material Document And Classification: ams 4928 assn std single material response or ams 4967 assn std single material response fastener
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
03A201-5	Close Tolerance Bolt
111282-5	Close Tolerance Bolt
AIC 4412-4-5	Close Tolerance Bolt
PBF1583-5	Close Tolerance Bolt
SC3106-4-5	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-356-3188?

The FSCG of the NSN 5306-01-356-3188 is 5306

Does the NSN 5306-01-356-3188 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5306-01-356-3188 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 5306-01-356-3188 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-356-3188 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 5306-01-356-3188 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Thu, Apr 2, 1992