Cross reference · US Navy · Hexagon self-locking nut

TMSG18 cross referenceESNA F52N, MS17829

TMSG18 is a US Navy hexagon self-locking nut series on 5 government stock numbers. Its closest equivalents are ESNA F52N, MS17829. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

5 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • F52NESNACatalog only, needs approvalon 2 of 5 stock numbers, 2 sizes

Standards

  • MS17829MSCatalog only, needs approvalon 2 of 5 stock numbers, 2 sizes
5 more on one stock number each: MS16997, MS27183, MS35206, FFW92, M24129
  • MS16997MSCatalog only, needs approvalon 1 of 5 stock numbers
  • MS27183MSCatalog only, needs approvalon 1 of 5 stock numbers
  • MS35206MSCatalog only, needs approvalon 1 of 5 stock numbers
  • FFW92Federal specificationsCatalog only, needs approvalon 1 of 5 stock numbers
  • M24129MIL specificationsCatalog only, needs approvalon 1 of 5 stock numbers

Airframer and OEM drawings

    1 more on one stock number each: 1379HX
    • 1379HXOshkoshCatalog only, needs approvalon 1 of 5 stock numbers

    Plus 17 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

    Get quotes for TMSG18

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

    Install tooling

    SpecLok has no catalog family for TMSG18. Tooling for the equivalents:

    None of the equivalents is in the SpecLok catalog yet.

    What the government paid

    DLA awards on 1 of 5 stock numbers, 19 awards from 2023-02-17 to 2026-08-17.

    Latest award per stock number: $0.75 each.

    DLA production lead time: 30 to 315 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

    5 stock numbers
    Part numbers DLA FLIS lists for TMSG18 and its equivalents, by stock number
    NSNTMSG18F52NMS17829FFW92M241291379HXLast DLA price
    5305-00-984-6219TMSG18-LR-MMA-0
    5310-00-483-8792TMSG18-LR-MMA-0207-33-6F52N1610-040MS17829-4CM24129-2-4C
    5310-00-689-3877TMSG18-LR-MMA-0207-33-9F52N1610-04MS17829-3C$0.75 2026-08
    5305-01-331-8083TMSG18-LR-MMA-0207-4-123
    5310-00-014-5850TMSG18-LR-MMA-020733-8FFW921379HX1

    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 classes 5305 Screws, 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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