5305-01-204-4186

Find complete technical information, availability, and procurement data for: 5305-01-204-4186
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-204-4186

Item Name Code

06657

Assigment Date

03/26/1985 (41 years ago)

2a thread class, flat countersunk head style, 0.869 inches minimum and 1.000 inches maximum thread length, right-hand thread direction, 0.969 inches minimum and 1.000 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: 2a
Thread Direction: right-hand
Thread Length: 0.869 inches minimum and 1.000 inches maximum
Fastener Length: 0.969 inches minimum and 1.000 inches maximum
Head Style: flat countersunk
Head Diameter: 0.462 inches minimum and 0.507 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 3 type and 2c style

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:

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90273A542	Machine Screw
AN505C416-16	Machine Screw
NASM51959-83	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-204-4186?

The FSCG of the NSN 5305-01-204-4186 is 5305

Does the NSN 5305-01-204-4186 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-204-4186 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 5305-01-204-4186 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-204-4186 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 5305-01-204-4186 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Tue, Mar 26, 1985