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Socket Head Cap Screw NSN 5305-01-439-6253

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 5305-01-439-6253 NSN: 5305-01-439-6253

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.604 inches
Fastener Length
Between 0.659 inches and 0.691 inches
Head Style
Flat chamfer
Head Diameter
Between 0.365 inches and 0.375 inches
Head Height
Between 0.244 inches and 0.250 inches
Hole Diameter
Between 0.052 inches and 0.058 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.188 inches and 0.190 inches
Hole Quantity
4
Hole Type
Drilled
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
160000 pounds per square inch
Hole Configuration Style
Double hexagon flats
Material
Steel comp 410 or steel comp 416
Material Specification
Qq-s-763 federal specification all material responses
Surface Treatment
Passivate
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
014396253
NSN
5305014396253

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
112-0579-055
Cage Code:
06725
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 5305-01-439-6253
What are the manufacturers of nsn 5305014396253?
Does this nsn 5305014396253 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305014396253
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 5305014396253 contain any precious metals?
No precious metal content.
Does nsn 5305014396253 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305014396253?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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