Cross reference · SPS Technologies · Plate self-locking nut

M12720 cross referenceHowmet RM300C, Cherry MT7C, ESNA LHTA55M, MS21074

M12720 is a SPS plate self-locking nut series on 6 government stock numbers. Its closest equivalents are Howmet RM300C, Cherry MT7C, ESNA LHTA55M, MS21074. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

6 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • RM300CHowmet Fastening SystemsCatalog only, needs approvalon 4 of 6 stock numbers, 4 sizes
  • MT7CCherry AerospaceCatalog only, needs approvalon 3 of 6 stock numbers, 3 sizes
  • LHTA55MESNACatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
5 more on one stock number each: MK3031, MT7C1032BC, MT7C832BC, MTL7C, RM300C3K
  • MK3031Howmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
  • MT7C1032BCCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • MT7C832BCCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • MTL7CCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • RM300C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers

Standards

  • MS21074MSCatalog only, needs approvalon 6 of 6 stock numbers, 6 sizes
1 more on one stock number each: NASM21074
  • NASM21074NASCatalog only, needs approvalon 1 of 6 stock numbers

Plus 2 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

Get quotes for M12720

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

Install tooling

SpecLok has no catalog family for M12720. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

What the government paid

DLA awards on 4 of 6 stock numbers, 7 awards from 2023-01-24 to 2026-01-27.

Latest award per stock number: $0.75 to $6.50 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

6 stock numbers
Part numbers DLA FLIS lists for M12720 and its equivalents, by stock number
NSNM12720RM300CMT7CLHTA55MMS21074NASM21074Last DLA price
5310-00-764-0041M12720-02RM300C3MT7C1032LHTA55M2860-02MS21074-3$0.75 2023-12
5310-00-764-0042M12720-048RM300C4MT7C428MS21074-4
5310-00-764-0039M12720-62RM300C06MS21074-06$1.12 2023-12
5310-00-764-0040M12720-82RM300C08MT7C832MS21074-08
5310-00-764-1755M12720-02BCLHTA55M2860-02BCMS21074-3K$6.50 2026-01
5310-00-765-4391M12720-82BCMS21074-08KNASM21074$1.20 2025-11

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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