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

MS21053L cross referenceCherry T12SH, Howmet K2100, ESNA RM52LHTA, NASM21053

MS21053L is a plate self-locking nut series on 4 government stock numbers. Its closest equivalents are Cherry T12SH, Howmet K2100, ESNA RM52LHTA, NASM21053. 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

  • T12SHCherry AerospaceCatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
2 more on one stock number each: K2100, RM52LHTA
  • K2100Howmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
  • RM52LHTAESNACatalog only, needs approvalon 1 of 4 stock numbers

Standards

  • NASM21053NASCatalog only, needs approvalon 4 of 4 stock numbers

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

Get quotes for MS21053L

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

Install tooling

SpecLok has no catalog family for MS21053L. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

Sizes by maker

4 stock numbers
Part numbers DLA FLIS lists for MS21053L and its equivalents, by stock number
NSNMS21053LT12SHK2100RM52LHTANASM21053Last DLA price
5310-00-774-7100MS21053L3T12SH1032NASM21053
5310-00-774-7103MS21053L4T12SH428K2100-4NASM21053
5310-00-774-7109MS21053L5NASM21053
5310-00-774-7099MS21053L08T12SH832RM52LHTA54-82NASM21053

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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