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Machine Screw NSN 5305-00-271-7718

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

NSN 5305-00-271-7718 NSN: 5305-00-271-7718

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.430 inches and 0.578 inches
Fastener Length
Between 2.516 inches and 2.563 inches
Head Style
Round
Head Diameter
Between 0.464 inches and 0.493 inches
Head Height
Between 0.133 inches and 0.150 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
125000 pounds per square inch
Hardness Rating
Between 26.0 rockwell c and 32.0 rockwell c
Screw Material
Steel comp 8630
Screw Material Specification
Mil-s-6050 military specification single material response or an-s-9 military standard single material response
Screw Surface Treatment
Cadmium
Screw Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification single treatment response
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
002717718
NSN
5305002717718

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NASM7839
Cage Code:
80205
Status:
A
MSDS:
Part Number:
NAS222-40
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 5305-00-271-7718
What are the manufacturers of nsn 5305002717718?
Does this nsn 5305002717718 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305002717718
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
Does nsn 5305002717718 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305002717718 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305002717718?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
App. Key:
Cond. Code:
1
Status:
A

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