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Thumbscrew NSN 5305-00-580-4771

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

NSN 5305-00-580-4771 NSN: 5305-00-580-4771

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.786 inches
Fastener Length
2.160 inches
Head Style
Knurled no. 4
Head Diameter
1.250 inches
Head Height
0.440 inches
Point Length
0.312 inches
Point Style
Oval
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
28
Material
Iron alloy 660
Material Specification
Ams 5735 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
171, finish no. 5.4.1 military standard single treatment response
Thread Series Designator
Unef
FSC
5305 Screws
NIIN
005804771
NSN
5305005804771

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2142767-1
Cage Code:
55974
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 5305-00-580-4771
What are the manufacturers of nsn 5305005804771?
Does this nsn 5305005804771 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305005804771
An externally threaded fastener whose threaded portion is of one nominal diameter. it may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. it has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. for items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
Does nsn 5305005804771 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305005804771 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305005804771?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06673
FIIG:
A003B0
App. Key:
SR
Cond. Code:
1
Status:
A

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