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Socket Head Cap Screw NSN 5305-00-273-6257

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 5305-00-273-6257 NSN: 5305-00-273-6257

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.500 inches
Fastener Length
1.500 inches
Head Style
Flat chamfer
Head Diameter
Between 0.987 inches and 1.000 inches
Head Height
Between 0.741 inches and 0.750 inches
Internal Drive Style
Hexagon
Thread Diameter
0.750 inches
Width Across Flats
Between 0.562 inches and 0.565 inches
Thready Qty Per Inch (tpi)
16
Hardness Rating
36.0 rockwell c and 43.0 rockwell c
Minimum Yield Strength
140000 pounds per square inch
Material
Steel comp 4135 or steel comp 4137 or steel comp 8635 or steel comp 8640
Material Specification
Qq-s-624 federal specification all material responses
Surface Treatment
Zinc
Thread Series Designator
Unf
Nondefinitive Specification/std Data
1 type and 11 style
FSC
5305 Screws
NIIN
002736257
NSN
5305002736257

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FFS86TYPE1STYLE11
Cage Code:
81348
Status:
A
MSDS:
Part Number:
12Z57PC564
Cage Code:
10001
Status:
A
MSDS:
Part Number:
345418PC3
Cage Code:
10001
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 5305-00-273-6257
What are the manufacturers of nsn 5305002736257?
Does this nsn 5305002736257 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305002736257
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 5305002736257 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305002736257 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305002736257?
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

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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