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Hexagon Head Cap Screw NSN 5305-01-255-6546

Item Description

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

NSN 5305-01-255-6546 NSN: 5305-01-255-6546

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 2.000 inches and 2.188 inches
Fastener Length
Between 4.312 inches and 4.500 inches
Head Style
Hexagon
Head Height
Between 0.531 inches and 0.563 inches
Width Between Flats
Between 1.285 inches and 1.312 inches
Hole Diameter
Between 0.123 inches and 0.131 inches
Thread Diameter
0.875 inches
Hole Quantity
1
Hole Type
Drilled
Thready Qty Per Inch (tpi)
14
Min. Tensile Strength (psi)
150000 pounds per square inch
Hardness Rating
32.0 rockwell c and 38.0 rockwell c
Hole Configuration Style
Hexagon flats
Surface Finish
63.0 microinches threads
Material
Steel
Material Specification
Sae gr8 assn standard single material response
Surface Treatment
Zinc and chromate
Surface Treatment Specification
Astm b633 type 2 sc 3 assn standard single treatment response
Thread Series Designator
Unf
Nondefinitive Specification/std Data
2 type and 10p style and 8 grade
FSC
5305 Screws
NIIN
012556546
NSN
5305012556546

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FF-S-85
Cage Code:
81348
Status:
A
MSDS:
Part Number:
B1821BH088F450D
Cage Code:
80204
Status:
A
MSDS:
Part Number:
MS18153-195
Cage Code:
96906
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318152000
  • NAICS: 332722
  • SITC: 69421
  • Description: Bolts and bolts and their nuts or washers exported in the same shipment
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-01-255-6546
What are the manufacturers of nsn 5305012556546?
Does this nsn 5305012556546 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012556546
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
Does nsn 5305012556546 contain any precious metals?
No precious metal content.
Does nsn 5305012556546 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012556546?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
18257
FIIG:
A003B0
App. Key:
SB
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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