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5305-01-059-0170

Machine Screw

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Official Item Classification

Name
Machine Screw
(NSN) National Stock Number
5305-01-059-0170
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
06657
(FIIG) Federal Item Identification Guide
A500D0
Date
04/06/1978 (48 years ago)

2.656 inches minimum and 2.750 inches maximum fastener length, 2.511 inches minimum and 2.667 inches maximum thread length, right-hand thread direction, flat countersunk head style, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

2.511 inches minimum and 2.667 inches maximum

Fastener Length

2.656 inches minimum and 2.750 inches maximum

Head Style

flat countersunk

Head Diameter

0.249 inches minimum and 0.279 inches maximum

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.138 inches

Thread Quantity Per Inch

32

Minimum Tensile Strength

80000 pounds per square inch

Countersink Angle

82.0 degrees nominal

Screw Material

steel comp 301 or steel comp 302 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 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 323 or steel comp 324 or steel comp 347 or steel comp 348 or steel comp 385

Screw Surface Treatment

passivate

Thread Series Designator

unc

Nondefinitive Spec/Std Data

3 type and 2c style

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0006657

Related Hardware Products

Part Number Description
AN505C6R44 Machine Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-059-0170?
The FSCG of the NSN 5305-01-059-0170 is 5305
Does the NSN 5305-01-059-0170 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-059-0170 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 5305-01-059-0170 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-059-0170 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 5305-01-059-0170 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Thu, Apr 6, 1978