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Worldwide distributor of NSN parts and consumables located in the USA.

Tapping Screw

Model / MPN: 11503421 | NSN: 5305-01-159-2771
ITAR Registered seal

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.

Product Details
NATO Stock Number
5305-01-159-2771
Sold in multiples of
100 EA
DEMIL
NO
Fastener Length
Between 12.20 millimeters and 13.00 millimeters
Head Style
Drive
Head Diameter
Between 9.5 millimeters and 9.9 millimeters
Head Height
Between 0.9 millimeters and 1.3 millimeters
Internal Drive Style
Cross recess type 1
Features Provided
Casehardened
Nonmachine Thread Style
Wide flute (type h or bt)
Nonmachine Thread Diameter
4.2 millimeters
Material
Steel
Material Specification
Gm 6172-m, fscm 11862 mfr ref single material response
Surface Treatment
Chromium
Surface Treatment Specification
G-4251-m, code 50, fscm 11862 mfr ref single treatment response
11503 Series Parts

Pricing and Availability

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11503421 Cross Reference
  • 11503284
  • 11503421
  • 11503284
  • 11503593