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Thumbscrew NSN 5305-00-140-1953

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 5305-00-140-1953 NSN: 5305-00-140-1953

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.430 inches
Fastener Length
Between 0.800 inches and 0.820 inches
Head Style
Knurled no. 1
Head Diameter
Between 0.740 inches and 0.760 inches
Head Height
Between 0.360 inches and 0.380 inches
Shoulder Diameter
0.500 inches first shoulder
Shoulder Length
0.130 inches first shoulder
Point Style
Flat
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Shoulder Shape
Round first shoulder
Material
Copper alloy
Material Specification
Qq-b-626 federal specification single material response
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
001401953
NSN
5305001401953

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3151-5326-001
Cage Code:
K0656
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7415338550
  • NAICS: 332722
  • SITC: 69433
  • Description: Other copper screws (not for wood) bolts and nuts
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5305-00-140-1953
What are the manufacturers of nsn 5305001401953?
Does this nsn 5305001401953 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305001401953
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 5305001401953 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305001401953 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305001401953?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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