Cross reference · NAS (Aerospace Industries Association) · Tapping screw

NASM51861 cross referenceMS51861

NASM51861 is a tapping screw series on 12 government stock numbers. Its closest equivalents are MS51861. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

12 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    1 more on one stock number each: PARKERKAL0N
    • PARKERKAL0NStanley Engineered FasteningCatalog only, needs approvalon 1 of 12 stock numbers

    Standards

    • MS51861MSCatalog only, needs approvalon 9 of 12 stock numbers, 9 sizes
    • FFS107Federal specificationsCatalog only, needs approvalon 8 of 12 stock numbers, 2 sizes
    • MS24617MSCatalog only, needs approvalon 3 of 12 stock numbers, 3 sizes
    • MS24621MSCatalog only, needs approvalon 2 of 12 stock numbers, 2 sizes
    • MS24622MSCatalog only, needs approvalon 2 of 12 stock numbers, 2 sizes
    • ANSIB1864ANSICatalog only, needs approvalon 2 of 12 stock numbers
    • FFS107CFederal specificationsCatalog only, needs approvalon 2 of 12 stock numbers
    4 more on one stock number each: AN530, AN530C2RF, ASMEB1821, B1864
    • AN530ANCatalog only, needs approvalon 1 of 12 stock numbers
    • AN530C2RFANCatalog only, needs approvalon 1 of 12 stock numbers
    • ASMEB1821ASMECatalog only, needs approvalon 1 of 12 stock numbers
    • B1864ANSICatalog only, needs approvalon 1 of 12 stock numbers

    Airframer and OEM drawings

      1 more on one stock number each: 27KP
      • 27KPOshkoshCatalog only, needs approvalon 1 of 12 stock numbers

      Plus 18 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for NASM51861

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

      Install tooling

      SpecLok has no catalog family for NASM51861. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 1 of 12 stock numbers, 1 awards from 2024-12-06 to 2024-12-06.

      Latest award per stock number: $6.00 each.

      DLA production lead time: 81 to 200 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

      12 stock numbers
      Part numbers DLA FLIS lists for NASM51861 and its equivalents, by stock number
      NSNNASM51861MS51861FFS107ANSIB1864Last DLA price
      5305-00-926-5611NASM51861-37MS51861-37
      5305-00-067-9900NASM51861-60
      5305-00-052-8241NASM51861MS51861-67-3/4IN.X1/4IN.FF-S-107ANSIB18.6.4
      5305-00-058-1082NASM51861MS51861-34FF-S-107ANSIB18.6.4
      5305-00-432-4205NASM51861MS51861-49FFS107
      5305-00-879-7941NASM51861MS51861-45-3/16X3/8IN.-16FF-S-107
      5305-01-146-2533NASM51861MS51861-1CFF-S-107
      5305-01-624-3950NASM51861MS51861
      5305-01-590-9505NASM51861-24C
      5305-00-133-1985NASM51861-39CFFS107
      5305-00-497-7413NASM51861-71CMS51861-71CFFS107$6.00 2024-12
      5305-00-476-7554NASM51861-72CMS51861-72CFFS107

      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 5305 Screws. Issuer names are SpecLok's reading of the filing CAGE code; distributors are not named. Compiled 2026-10-02.

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