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Hexagon Head Cap Screw NSN 5305-01-256-4457

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 5305-01-256-4457 NSN: 5305-01-256-4457

  Stock Availability

NSN 5305012564457 availability
(as of 10/18/2024).

  • NS: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.484 inches and 0.563 inches
Fastener Length
Between 10.828 inches and 10.875 inches
Head Style
Hexagon
Head Height
0.250 inches
Width Between Flats
0.750 inches
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
150000 pounds per square inch
Hardness Rating
32.0 rockwell c and 36.0 rockwell c
Material
Steel comp e4340
Material Specification
Mil-s-5000 military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 cl 3 federal specification single treatment response
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
012564457
NSN
5305012564457

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
52-B-1070-1
Cage Code:
06GF2
Status:
A
MSDS:
Part Number:
050F1100E4340
Cage Code:
0PL77
Status:
A
MSDS:
Part Number:
52B1070-1
Cage Code:
Z0K15
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 5305-01-256-4457
What are the manufacturers of nsn 5305012564457?
Does this nsn 5305012564457 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012564457
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 5305012564457 contain any precious metals?
No precious metal content.
Does nsn 5305012564457 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012564457?
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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