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Socket Head Cap Screw NSN 5305-01-256-5784

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 5305-01-256-5784 NSN: 5305-01-256-5784

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.219 inches and 0.250 inches
Fastener Length
Between 0.219 inches and 0.250 inches
Head Style
Flat chamfer
Head Diameter
Between 0.178 inches and 0.183 inches
Head Height
Between 0.059 inches and 0.069 inches
Locking Feature
Strip threads
Internal Drive Style
Cross recess type 1
Thread Diameter
0.1120 inches
Thready Qty Per Inch (tpi)
40
Min. Tensile Strength (psi)
160000 pounds per square inch
Material
Steel comp 4140 or steel comp 4340 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-6049 military specification 3rd material response
Thread Series Designator
Unjc
Specification Data
80205-nas1191 professional/industrial association standard
FSC
5305 Screws
NIIN
012565784
NSN
5305012565784

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS1191E04P4L
Cage Code:
80205
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 5305-01-256-5784
What are the manufacturers of nsn 5305012565784?
Does this nsn 5305012565784 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012565784
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 5305012565784 contain any precious metals?
No precious metal content.
Does nsn 5305012565784 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012565784?
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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