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Socket Head Cap Screw NSN 5305-00-638-1438

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

NSN 5305-00-638-1438 NSN: 5305-00-638-1438

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Features and Characteristics

Thread Direction
Right-hand
Thread Length
0.750 inches
Fastener Length
1.000 inches
Head Style
Flat chamfer
Head Diameter
0.312 inches
Head Height
0.438 inches
Internal Drive Style
Hexagon
Thread Diameter
0.312 inches
Width Across Flats
0.250 inches
Thready Qty Per Inch (tpi)
22
Min. Tensile Strength (psi)
150 pounds per square inch
Hardness Rating
36.0 rockwell c and 43.0 rockwell c
Material
Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response
Thread Series Designator
Ba
FSC
5305 Screws
NIIN
006381438
NSN
5305006381438

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
B314099-1
Cage Code:
80020
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 5305-00-638-1438
What are the manufacturers of nsn 5305006381438?
Does this nsn 5305006381438 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305006381438
An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.
Does nsn 5305006381438 contain any precious metals?
No precious metal content.
Does nsn 5305006381438 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305006381438?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
App. Key:
SC
Cond. Code:
1
Status:
A

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