Cross reference · SPS Technologies · Plate self-locking nut

M12700 cross referenceHowmet RM200C, ESNA LHTA1M, Cherry MTL2C, MS21070

M12700 is a SPS plate self-locking nut series on 6 government stock numbers. Its closest equivalents are Howmet RM200C, ESNA LHTA1M, Cherry MTL2C, MS21070. 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

  • RM200CHowmet Fastening SystemsCatalog only, needs approvalon 4 of 6 stock numbers, 4 sizes
  • LHTA1MESNACatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
  • LHTA51MESNACatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
  • MK1031Howmet Fastening SystemsCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
  • MTL2CCherry AerospaceCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
6 more on one stock number each: MT2C, MT2C1032BC, MT2C832AR, MT2C832BC, RM200C08K, RM200C3K
  • MT2CCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • MT2C1032BCCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • MT2C832ARCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • MT2C832BCCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
  • RM200C08KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
  • RM200C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers

Standards

  • MS21070MSCatalog only, needs approvalon 6 of 6 stock numbers, 6 sizes
1 more on one stock number each: NAS697C08K
  • NAS697C08KNASCatalog only, needs approvalon 1 of 6 stock numbers

Get quotes for M12700

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

Install tooling

SpecLok has no catalog family for M12700. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

What the government paid

DLA awards on 2 of 6 stock numbers, 9 awards from 2023-01-24 to 2026-08-13.

Latest award per stock number: $1.10 to $1.40 each.

DLA production lead time: 70 days.

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 M12700 and its equivalents, by stock number
NSNM12700RM200CLHTA1MMTL2CMS21070NAS697C08KLast DLA price
5310-00-762-6148M12700-02RM200C3MS21070-3
5310-00-762-6157M12700-40RM200C04LHTA1M2860-40MTL2C440MS21070-04
5310-00-762-6156M12700-62RM200C06LHTA1M2860-62MTL2C632MS21070-06$1.10 2025-09
5310-00-762-6151M12700-82RM200C08MS21070-08
5310-00-945-0517M12700-02BCMS21070-3K$1.40 2026-08
5310-00-176-6566M12700-82BCMS21070-08KNAS697C08K

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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