Cross reference · Howmet Fastening Systems · Plate self-locking nut

R3000X cross referenceSPS 12620NM, ESNA F52LHTA, Cherry T7S1032CPC, MS21055

R3000X is a Howmet plate self-locking nut series on 3 government stock numbers. Its closest equivalents are SPS 12620NM, ESNA F52LHTA, Cherry T7S1032CPC, MS21055. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

3 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • 12620NMSPS TechnologiesCatalog only, needs approvalon 3 of 3 stock numbers, 3 sizes
  • F52LHTAESNACatalog only, needs approvalon 2 of 3 stock numbers, 2 sizes
4 more on one stock number each: F2LHTA, T7S1032CPC, T7S428CPC, T7S832CPC
  • F2LHTAESNACatalog only, needs approvalon 1 of 3 stock numbers
  • T7S1032CPCCherry AerospaceCatalog only, needs approvalon 1 of 3 stock numbers
  • T7S428CPCCherry AerospaceCatalog only, needs approvalon 1 of 3 stock numbers
  • T7S832CPCCherry AerospaceCatalog only, needs approvalon 1 of 3 stock numbers

Standards

  • MS21055MSCatalog only, needs approvalon 3 of 3 stock numbers, 3 sizes
1 more on one stock number each: NASM25027
  • NASM25027NASCatalog only, needs approvalon 1 of 3 stock numbers

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

Get quotes for R3000X

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

Install tooling

SpecLok has no catalog family for R3000X. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

Sizes by maker

3 stock numbers
Part numbers DLA FLIS lists for R3000X and its equivalents, by stock number
NSNR3000X12620NMF52LHTAT7S1032CPCMS21055NASM25027Last DLA price
5310-00-779-3513R3000X312620NM-02T7S1032CPCMS21055-3
5310-00-779-3514R3000X412620NM-48F52LHTA55-048MS21055-4
5310-00-779-3512R3000X0812620NM-82F52LHTA55-82MS21055-08NASM25027

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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