5305-01-186-4552

Find complete technical information, availability, and procurement data for: 5305-01-186-4552
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-186-4552

Item Name Code

29294

Assigment Date

08/10/1984 (41 years ago)

An insulator that is essentially thin, flat, and round in shape, with or without holes. The general shape may vary by the addition of such features as beveled edges, indented surfaces, through-hole key and/or peripheral flats. It may have one or more holes off center; if there are two or more holes, one may be centrally located. Excludes:mounting pad, electrical-electronic component.

0.516 inches minimum and 0.556 inches maximum thread length, 3a thread class, right-hand thread direction, flat countersunk head style, 1.526 inches minimum and 1.546 inches maximum fastener 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: 0.516 inches minimum and 0.556 inches maximum
Fastener Length: 1.526 inches minimum and 1.546 inches maximum
Head Style: flat countersunk
Head Diameter: 0.508 inches maximum
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Width Across Flats: 0.1565 inches minimum and 0.1587 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Special Features: 3 keyways 0.380 in. min. and 0.410 in. max long,0.040 in. min and 0.044 in. max wide machined in shank,bore machined in thread end to receive plug
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 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
CA2193-4-16	Close Tolerance Screw
FIT01-0002-4016	Close Tolerance Screw
LE111-0002-4016	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-186-4552?

The FSCG of the NSN 5305-01-186-4552 is 5305

Does the NSN 5305-01-186-4552 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-186-4552 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 5305-01-186-4552 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-186-4552 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 5305-01-186-4552 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Aug 10, 1984