Cross reference · NAS (Aerospace Industries Association) · Gang c self-locking nut assembly

NASM21063 cross referenceSPS C178, ESNA RM52LHTG, MS21063L, Boeing 3M150N

NASM21063 is a gang c self-locking nut assembly series on 4 government stock numbers. Its closest equivalents are SPS C178, ESNA RM52LHTG, MS21063L, Boeing 3M150N. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

4 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    2 more on one stock number each: C178, RM52LHTG
    • C178SPS TechnologiesCatalog only, needs approvalon 1 of 4 stock numbers, 2 sizes
    • RM52LHTGESNACatalog only, needs approvalon 1 of 4 stock numbers, 2 sizes

    Standards

    • MS21063LMSCatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
    1 more on one stock number each: MS21063
    • MS21063MSCatalog only, needs approvalon 1 of 4 stock numbers

    Airframer and OEM drawings

      1 more on one stock number each: 3M150N
      • 3M150NBoeingCatalog only, needs approvalon 1 of 4 stock numbers, 2 sizes

      Plus 1 reference number whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for NASM21063

      Part number NASM21063

      Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.

      Install tooling

      SpecLok has no catalog family for NASM21063. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 1 of 4 stock numbers, 2 awards from 2024-03-19 to 2024-07-10.

      Latest award per stock number: $131.62 each.

      Per size in the table below.

      DLA prices at DLA quantities, not a quote.Source

      DLA award prices at DLA quantities and terms, not a commercial quote. Each award may bundle packaging, delivery and inspection terms that a commercial buy does not. Vendors are shown by CAGE code only.

      Source: DLA FOIA Electronic Reading Room ↗, public FOIA releases. Files: 2023ContHist.zip/2023ContractHistory.txt, 2024ContHist.zip/2024ContractHistory.txt, contracthist2025.zip/contracthist2025.txt, 2026-09-16-1038_contracthist.zip/2026-09-16-1038_contracthist.txt.

      Sizes by maker

      4 stock numbers
      Part numbers DLA FLIS lists for NASM21063 and its equivalents, by stock number
      NSNNASM21063C178RM52LHTGMS21063L3M150NLast DLA price
      5310-00-915-7957NASM21063MS21063L08-13
      5310-00-952-0251NASM21063C178-4-14-2LRM52LHTG51-048-J14-2LMS21063L4-143M150N4-14-2L
      5310-01-294-7391NASM21063$131.62 2024-07
      5310-01-507-3019NASM21063MS21063L3-16-3

      Each row is one National Stock Number and the part numbers DLA FLIS lists on it, as written there. A blank means FLIS lists no part in that series on the stock number, not that the size does not exist.

      Sources and how to read this page.Details

      Reference numbers the Federal Logistics Information System records against the same National Stock Number. A supply-catalog cross-reference, not an engineering-approved interchangeability: confirm against the controlling drawing or spec before substituting. Only equivalents marked cited have a manufacturer or government document, linked with each.

      Source: DLA Federal Logistics Information System, via DLA PUB LOG ↗ (FLIS Data Electronic Reading Room ↗), data as of 2025-03-18 (March 2025 snapshot). Federal supply class 5310 Nuts and washers. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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