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Hexagon Head Cap Screw NSN 5305-00-257-3125

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 5305-00-257-3125 NSN: 5305-00-257-3125

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
2.458 inches
Fastener Length
Between 3.062 inches and 3.250 inches
Head Style
Hexagon
Head Height
Between 0.591 inches and 0.627 inches
Width Between Flats
Between 1.469 inches and 1.500 inches
Thread Diameter
1.000 inches
Thready Qty Per Inch (tpi)
12
Min. Tensile Strength (psi)
150000 pounds per square inch
Hardness Rating
32.0 rockwell c and 38.0 rockwell c
Surface Finish
63.0 microinches threads
Material
Steel
Material Specification
Sae gr 8 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
002573125
NSN
5305002573125

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS90726-235
Cage Code:
D9182
Status:
A
MSDS:
Part Number:
FFS85
Cage Code:
81348
Status:
A
MSDS:
Part Number:
B1821BH100F325N
Cage Code:
80204
Status:
A
MSDS:
Part Number:
MS90727-235
Cage Code:
96906
Status:
A
MSDS:
Part Number:
ASME B18.2.1
Cage Code:
05047
Status:
A
MSDS:
Part Number:
AES01FA00C25AW9A91
Cage Code:
05047
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 5305-00-257-3125
What are the manufacturers of nsn 5305002573125?
Does this nsn 5305002573125 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305002573125
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 5305002573125 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305002573125 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305002573125?
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

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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