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Tapping Screw NSN 5305-00-637-4521

Item Description

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes screw, assembled washer.

NSN 5305-00-637-4521 NSN: 5305-00-637-4521

Features and Characteristics

Fastener Length
Between 0.719 inches and 0.781 inches
Head Style
Pan no. 2
Head Diameter
Between 0.281 inches and 0.296 inches
Head Height
Between 0.079 inches and 0.089 inches
Internal Drive Style
Slot
Features Provided
Casehardened
Nonmachine Thread Style
Gimlet point (type a, ab or ba)
Nonmachine Thread Diameter
0.151 inches
Material
Steel
Surface Treatment
Zinc
Surface Treatment Specification
Astm-b633 federal specification 1st treatment response
FSC
5305 Screws
NIIN
006374521
NSN
5305006374521

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
ANSI B18.6.4
Cage Code:
80204
Status:
A
MSDS:
Part Number:
FF-S-107
Cage Code:
81348
Status:
A
MSDS:
Part Number:
60054
Cage Code:
2S125
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318140000
  • NAICS: 332722
  • SITC: 69421
  • Description: Self-tapping screws of iron or steel
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-00-637-4521
What are the manufacturers of nsn 5305006374521?
Does this nsn 5305006374521 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305006374521
A hardened externally threaded fastener whose thread extends to the bearing surface of the head. the thread may be fluted or otherwise designed to cut or form its own mating thread. excludes screw, assembled washer.
Does nsn 5305006374521 contain any precious metals?
No precious metal content.
Does nsn 5305006374521 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305006374521?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
41756
FIIG:
A003B0
App. Key:
SN
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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