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NationalStockNumber.INFO

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Tapping Screw

NSN: 5305-00-579-5821 | Model: AN531-6R6

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 Properties and Flags
NATO Stock Number
5305-00-579-5821
DEMIL
NO
Fastener Length
Between 0.344 inches and 0.375 inches
Head Style
Flat countersunk
Head Diameter
Between 0.257 inches and 0.279 inches
Internal Drive Style
Cross recess type 1
Features Provided
Casehardened
Nonmachine Thread Style
Dog type (type b or c)
Countersink Angle
Between 80.0 degrees and 82.0 degrees
Nonmachine Thread Diameter
0.137 inches
Material
Steel
Surface Treatment
Cadmium

Pricing and Availability

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NSN 5305-00-579-5821 Datasheet

Supply Class (FSC):
Screws
Cross Reference:
  • AN531-6R6
  • AN531-6R6
Cage Codes:
  • Aeronautical Standards Group (CAGE 88044)
  • Joint Aircraft Committee (CAGE 80059)
Replacements:
  • 5305-00-579-5821 replaces 5305-00-167-2376
Schedule B & Trade:
  • Schedule B: 7318140000 (NAICS 332722)

    Self-tapping screws of iron or steel

  • SITC: 69421

    Screws, bolts, nuts, screw hooks, rivets, washers and similar articles, threaded, of iron or steel

  • End Use: 12110

    Iron and steel products, other

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

U - Precious metal content is unknown

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    093486 - Bolts, nuts or screws, noi (sub 3)

  • WCC:

    713 - Metal hardware

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LCL:

    U - 50.0

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 5305-00-579-5821 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Brazil, Columbia, Australia, Canada, France, United Kingdom, and Greece
What is the NIIN of NSN 5305-00-579-5821?
005795821 or 00-579-5821
Does NSN 5305-00-579-5821 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5305-00-579-5821?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963