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5305-00-445-7237

Find complete technical information, availability, and procurement data for: 5305-00-445-7237

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5305-00-445-7237
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-445-7237
Item Name Code
18257
Assigment Date
01/08/1971 (55 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

hexagon head style, right-hand thread direction, 1.823 inches minimum and 2.000 inches maximum thread length, 2.000 inches nominal fastener length, 2a thread class

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
1.823 inches minimum and 2.000 inches maximum
Fastener Length
2.000 inches nominal
Head Style
hexagon
Head Height
0.272 inches minimum and 0.291 inches maximum
Width Between Flats
0.612 inches minimum and 0.625 inches maximum
Nominal Thread Diameter
0.438 inches
Thread Quantity Per Inch
14
Minimum Tensile Strength
12800 pounds per square inch
Special Features
head covered with rubber spec mil-std-417 grade rn or rs612 bf2,1/16 in. thk,1/2 in. lg on shank
Material
steel overall
Material Document And Classification
sae gr 5 assn std single material response overall
Surface Treatment
cadmium overall
Thread Series Designator
unc

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
7084948 Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-445-7237?
The FSCG of the NSN 5305-00-445-7237 is 5305
Does the NSN 5305-00-445-7237 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-445-7237 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 5305-00-445-7237 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-445-7237 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 5305-00-445-7237 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Fri, Jan 8, 1971

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