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5305-01-078-5065

Find complete technical information, availability, and procurement data for: 5305-01-078-5065

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5305-01-078-5065
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-078-5065
Item Name Code
18257
Assigment Date
06/15/1979 (47 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

2a thread class, 1.250 inches minimum and 1.443 inches maximum thread length, hexagon head style, 1.438 inches minimum and 1.500 inches maximum fastener length, right-hand thread direction

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
1.250 inches minimum and 1.443 inches maximum
Fastener Length
1.438 inches minimum and 1.500 inches maximum
Head Style
hexagon
Head Height
0.302 inches minimum and 0.323 inches maximum
Width Between Flats
0.736 inches minimum and 0.750 inches maximum
Locking Feature
patch or strip threads
Nominal Thread Diameter
0.500 inches
Thread Quantity Per Inch
13
Minimum Tensile Strength
150000 pounds per square inch
Hardness Rating
32.0 rockwell c minimum and 38.0 rockwell c maximum fastener
Material
plastic polyamide (nylon) locking feature
Material
steel fastener
Material Document And Classification
sae j429, grade 8 assn std single material response fastener
Surface Treatment
zinc and chromate fastener
Surface Treatment Document And Classification
astm b633, type 2 assn std single treatment response fastener
Thread Series Designator
unc
Nondefinitive Spec/Std Data
2 type and 10p style and 8 grade

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
B1821BH050C150C Hexagon Head Cap Screw
MS18154-114L Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-078-5065?
The FSCG of the NSN 5305-01-078-5065 is 5305
Does the NSN 5305-01-078-5065 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-078-5065 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 5305-01-078-5065 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-078-5065 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 5305-01-078-5065 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Fri, Jun 15, 1979

Professional Distribution

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