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Setscrew NSN 5305-01-258-8490

Item Description

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

NSN 5305-01-258-8490 NSN: 5305-01-258-8490

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Fastener Length
Between 0.490 inches and 0.510 inches
Head Style
Headless (setscrew)
Locking Feature
Patch threads
Point Style
Half dog
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
0.125 inches
Thready Qty Per Inch (tpi)
20
Hardness Rating
45.0 rockwell c fastener and 53.0 rockwell c fastener
Color
Black fastener
Material
Steel fastener
Surface Treatment
Oxide fastener
Thread Series Designator
Unrc
FSC
5305 Screws
NIIN
012588490
NSN
5305012588490

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
28706L4C8
Cage Code:
02310
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 5305-01-258-8490
What are the manufacturers of nsn 5305012588490?
Does this nsn 5305012588490 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012588490
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. a locking feature may be incorporated in the design of the head or threads.
Does nsn 5305012588490 contain any precious metals?
No precious metal content.
Does nsn 5305012588490 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012588490?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06672
FIIG:
A003B0
App. Key:
SQ
Cond. Code:
1
Status:
A

What do you get when you order from nationalstocknumber.org?

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