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5305-01-286-6055

Find complete technical information, availability, and procurement data for: 5305-01-286-6055

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5305-01-286-6055
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-286-6055
Item Name Code
18257
Assigment Date
10/05/1988 (37 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

3.920 inches minimum and 4.000 inches maximum fastener length, 2a thread class, right-hand thread direction, hexagon head style, 1.250 inches minimum thread 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
1.250 inches minimum
Fastener Length
3.920 inches minimum and 4.000 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
Nominal Thread Diameter
0.500 inches
Thread Quantity Per Inch
13
Minimum Tensile Strength
120000 pounds per square inch
Hardness Rating
23.0 rockwell c minimum and 34.0 rockwell c maximum overall
Minimum Yield Strength
92000 pounds per square inch
Material
steel overall
Material Document And Classification
sae j429 grade 5 assn std single material response or astm a354 grade bd assn std single material response overall
Surface Treatment
zinc overall
Surface Treatment Document And Classification
astm b633 assn std single treatment response overall
Thread Series Designator
unc
Nondefinitive Spec/Std Data
1 type

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
1/2-13UNC2AX4IN.LG,1-1/4THD LG Hexagon Head Cap Screw
M1222RW8C264GFNZE Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-286-6055?
The FSCG of the NSN 5305-01-286-6055 is 5305
Does the NSN 5305-01-286-6055 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-286-6055 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 5305-01-286-6055 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-286-6055 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 5305-01-286-6055 was assigned to the Federal Catalog?
It was assigned 37 years ago, on Wed, Oct 5, 1988

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