Cross reference · MS (US military standards) · Plate self-locking nut

MS21072 cross referenceSPS M12710, ESNA LHTA57M, Howmet RM100C, Cherry MT12C

MS21072 is a plate self-locking nut series on 9 government stock numbers. Its closest equivalents are SPS M12710, ESNA LHTA57M, Howmet RM100C, Cherry MT12C. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

9 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • M12710SPS TechnologiesCatalog only, needs approvalon 7 of 9 stock numbers, 7 sizes
  • LHTA57MESNACatalog only, needs approvalon 5 of 9 stock numbers, 5 sizes
  • RM100CHowmet Fastening SystemsCatalog only, needs approvalon 5 of 9 stock numbers, 4 sizes
  • MT12CCherry AerospaceCatalog only, needs approvalon 4 of 9 stock numbers, 4 sizes
  • MK2031Howmet Fastening SystemsCatalog only, needs approvalon 2 of 9 stock numbers, 2 sizes
  • MTL12CCherry AerospaceCatalog only, needs approvalon 2 of 9 stock numbers, 2 sizes
4 more on one stock number each: MT12C1032BC, MT12C832BC, RM100C08K, RM100C3K
  • MT12C1032BCCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
  • MT12C832BCCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
  • RM100C08KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
  • RM100C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers

Standards

    1 more on one stock number each: NAS696C
    • NAS696CNASCatalog only, needs approvalon 1 of 9 stock numbers

    Get quotes for MS21072

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

    Install tooling

    SpecLok has no catalog family for MS21072. Tooling for the equivalents:

    None of the equivalents is in the SpecLok catalog yet.

    What the government paid

    DLA awards on 4 of 9 stock numbers, 7 awards from 2023-07-19 to 2026-08-12.

    Latest award per stock number: $0.98 to $2.71 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

    9 stock numbers
    Part numbers DLA FLIS lists for MS21072 and its equivalents, by stock number
    NSNMS21072M12710LHTA57MRM100CMT12CNAS696CLast DLA price
    5310-00-762-2878MS21072-3M12710-02LHTA57M2860-02RM100C3MT12C1032$0.98 2025-01
    5310-00-762-2875MS21072-04RM100C04$1.24 2023-07
    5310-00-762-2879MS21072-4M12710-048LHTA57M2860-048RM100C4MT12C428NAS696C4
    5310-00-762-2876MS21072-06M12710-62RM100C06$2.26 2025-04
    5310-00-762-2881MS21072-6M12710-064MT12C624
    5310-00-762-2877MS21072-08M12710-82LHTA57M2860-82RM100C08MT12C832$2.71 2026-08
    5310-00-762-7457MS21072-08KM12710-82BCLHTA57M2860-82BC
    5310-00-762-7458MS21072-3KM12710-02BCLHTA57M2860-02BC
    5310-01-174-8756MS21072-4K

    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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