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

MF1031 cross referenceESNA 101F9201M, SPS NS103218S, Cherry T8126C3C, NAS1068A04L

MF1031 is a Howmet plate self-locking nut series on 4 government stock numbers. Its closest equivalents are ESNA 101F9201M, SPS NS103218S, Cherry T8126C3C, NAS1068A04L. 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

  • 101F9201MESNACatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
  • NS103218SSPS TechnologiesCatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
3 more on one stock number each: MA13600, T8126C3C, T8126C4C
  • MA13600SPS TechnologiesCatalog only, needs approvalon 1 of 4 stock numbers
  • T8126C3CCherry AerospaceCatalog only, needs approvalon 1 of 4 stock numbers
  • T8126C4CCherry AerospaceCatalog only, needs approvalon 1 of 4 stock numbers

Standards

    2 more on one stock number each: NAS1068A04L, NAS1068C06L
    • NAS1068A04LNASCatalog only, needs approvalon 1 of 4 stock numbers
    • NAS1068C06LNASCatalog only, needs approvalon 1 of 4 stock numbers

    Airframer and OEM drawings

      3 more on one stock number each: 886C, BACN10JN3C, BACN10JN4C
      • 886CLockheed MartinCatalog only, needs approvalon 1 of 4 stock numbers
      • BACN10JN3CBoeingCatalog only, needs approvalon 1 of 4 stock numbers
      • BACN10JN4CBoeingCatalog only, needs approvalon 1 of 4 stock numbers

      Plus 4 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for MF1031

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

      Install tooling

      SpecLok has no catalog family for MF1031. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 1 of 4 stock numbers, 1 awards from 2025-11-25 to 2025-11-25.

      Latest award per stock number: $1.99 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

      4 stock numbers
      Part numbers DLA FLIS lists for MF1031 and its equivalents, by stock number
      NSNMF1031101F9201MNS103218ST8126C3CNAS1068A04L886CLast DLA price
      5310-00-685-7524MF1031-06886C279
      5310-00-789-1548MF1031-440NAS1068A04L
      5310-01-059-1125MF1031-3BAC101F9201M-3NS103218S-02T8126C3C
      5310-01-059-1124MF1031-4BAC101F9201M-4NS103218S-048$1.99 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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