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5305-00-185-0239

Find complete technical information, availability, and procurement data for: 5305-00-185-0239

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5305-00-185-0239
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-185-0239
Item Name Code
06657
Assigment Date
03/02/1973 (53 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

1.750 inches minimum thread length, 3a thread class, flat chamfer head style, right-hand thread direction, 2.468 inches minimum and 2.562 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
1.750 inches minimum
Fastener Length
2.468 inches minimum and 2.562 inches maximum
Head Style
flat chamfer
Head Diameter
0.306 inches minimum and 0.313 inches maximum
Head Height
0.103 inches minimum and 0.118 inches maximum
Internal Drive Style
torque set
Nominal Thread Diameter
0.190 inches
Thread Quantity Per Inch
32
Minimum Tensile Strength
160000 pounds per square inch
Screw Material
steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
Screw Material Document And Classification
mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response
Screw Surface Treatment Document And Classification
qq-p-416 ty 2 cl 3 fed spec single treatment response
Thread Series Designator
unjf
Specification/Standard Data
80205-nas1101 professional/industrial association standard

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
NAS1101-3-41 Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-185-0239?
The FSCG of the NSN 5305-00-185-0239 is 5305
Does the NSN 5305-00-185-0239 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-185-0239 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 5305-00-185-0239 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-185-0239 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 5305-00-185-0239 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Fri, Mar 2, 1973

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