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

Tube Coupling Nut

Model / MPN: 520521 | NSN: 4730-00-052-9876
ITAR Registered seal

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

Product Details
NATO Stock Number
4730-00-052-9876
Sold in multiples of
10 EA
DEMIL
NO
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M315T6848 Nut, Tube Coupling 83 EA 03/16/2015
SPE7M319T6499 Nut, Tube Coupling 317 EA 03/11/2019
SPE7M320T6579 Nut, Tube Coupling 317 EA 03/09/2020

Pricing and Availability

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520521 Cross Reference
  • MS39210-3
  • 8105X4
  • 502637
  • MS39210-3
  • 8105X4
  • B3153604
  • 3H1827
  • 520521
  • 2300094-031300.29.0
  • 2300094-031300.29.0
  • 25704-281505-03-0
  • 961F1-4
  • A74289
  • PGF9497-13
  • 108-10504
  • 8105X4
  • 8015X4
  • 189894
  • 10-31555
  • 25704-281505-03-0
  • 4730-052-9876
  • 4730000529876
  • 10-31551