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

MS51922 cross referenceM45913/1

MS51922 is a hexagon self-locking nut series on 57 government stock numbers. Its closest equivalents are M45913/1. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

57 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

    5 more on one stock number each: 29NE, 68NE, 79NE, F42NE, F52NE
    • 29NEESNACatalog only, needs approvalon 1 of 57 stock numbers
    • 68NEESNACatalog only, needs approvalon 1 of 57 stock numbers
    • 79NEESNACatalog only, needs approvalon 1 of 57 stock numbers
    • F42NEESNACatalog only, needs approvalon 1 of 57 stock numbers, 3 sizes
    • F52NEESNACatalog only, needs approvalon 1 of 57 stock numbers

    Standards

    • M45913/1MIL specificationsCatalog only, needs approvalon 39 of 57 stock numbers, 39 sizes
    • M45913/2MIL specificationsCatalog only, needs approvalon 13 of 57 stock numbers, 13 sizes
    3 more on one stock number each: NASM21044, AN365, M45913/5
    • NASM21044NASCatalog only, needs approvalon 1 of 57 stock numbers
    • AN365ANCatalog only, needs approvalon 1 of 57 stock numbers
    • M45913/5MIL specificationsCatalog only, needs approvalon 1 of 57 stock numbers

    Airframer and OEM drawings

      8 more on one stock number each: 1129E01ITEM, 1135E11FN, 386B, 908998K, BACB10WL, PK373, PWA10132, RAR2457
      • 1129E01ITEMNorthrop GrummanCatalog only, needs approvalon 1 of 57 stock numbers
      • 1135E11FNNorthrop GrummanCatalog only, needs approvalon 1 of 57 stock numbers
      • 386BNorthrop GrummanCatalog only, needs approvalon 1 of 57 stock numbers
      • 908998KHoneywellCatalog only, needs approvalon 1 of 57 stock numbers
      • BACB10WLBoeingCatalog only, needs approvalon 1 of 57 stock numbers
      • PK373RTXCatalog only, needs approvalon 1 of 57 stock numbers
      • PWA10132RTXCatalog only, needs approvalon 1 of 57 stock numbers
      • RAR2457US NavyCatalog only, needs approvalon 1 of 57 stock numbers

      Plus 114 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for MS51922

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

      Install tooling

      SpecLok has no catalog family for MS51922. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 15 of 57 stock numbers, 108 awards from 2023-07-07 to 2026-07-30.

      Latest award per stock number: $0.12 to $20.94 each.

      DLA production lead time: 84 to 300 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

      57 stock numbers
      Part numbers DLA FLIS lists for MS51922 and its equivalents, by stock number
      NSNMS51922M45913/1Last DLA price
      5310-00-088-1251MS51922-1M45913/1-4CG5C$0.12 2026-07
      5310-00-929-1807MS51922-2M45913/1-4CS3
      5310-00-965-1820MS51922-3M45913/1-4CBB
      5310-00-877-5796MS51922-5
      5310-00-959-7600MS51922-5M45913/1-4FG5C
      5310-00-143-6102MS51922-6M45913/1-4FS3
      5310-01-006-3907MS51922-7
      5310-01-139-4812MS51922-8M45913/1-4FAA
      5310-00-984-3806MS51922-9M45913/1-5CG5C
      5310-01-633-8109MS51922-9
      5310-01-422-2430MS51922-10
      5310-00-913-3366MS51922-11M45913/1-5CBB
      5310-00-984-3807MS51922-13M45913/1-5FG5C$0.12 2025-10
      5310-00-927-3877MS51922-14M45913/1-5FS3
      5310-01-491-7744MS51922-017
      Show 42 more sizes
      More sizes
      NSNMS51922M45913/1Last DLA price
      5310-00-087-4652MS51922-17M45913/1-6CG5C$0.27 2025-05
      5310-00-914-6028MS51922-18M45913/1-6CS3
      5310-01-034-2835MS51922-19
      5310-00-959-1488MS51922-21
      5310-00-067-4903MS51922-22
      5310-00-902-0183MS51922-23$3.40 2025-03
      5310-01-440-8710MS51922-24M45913/1-6FAA
      5310-00-575-5329MS51922-25M45913/1-7CG5C
      5310-00-057-7080MS51922-29M45913/1-7FG5C
      5310-00-225-6993MS51922-33M45913/1-8CG5C$1.79 2026-07
      5310-00-008-7843MS51922-35M45913/1-8CBB$3.29 2026-06
      5310-00-067-9507MS51922-37M45913/1-8FG5C
      5310-00-171-2444MS51922-38M45913/1-8FS3
      5310-01-303-3909MS51922-39
      5310-00-176-6271MS51922-41M45913/1-9CG5C$20.94 2024-12
      5310-00-897-5940MS51922-45M45913/1-9FG5C$2.45 2023-12
      5310-00-136-5606MS51922-46M45913/1-9FS3
      5310-00-069-4217MS51922-48
      5310-00-269-4040MS51922-49M45913/1-10CG5C$4.58 2025-09
      5310-01-193-7641MS51922-51
      5310-00-225-6408MS-51922-53M45913/1-10FG5C$2.25 2025-11
      5310-00-451-0097MS51922-54M45913/1-10FS3
      5310-00-067-6356MS51922-57$3.78 2026-04
      5310-00-161-0654MS51922-59
      5310-00-832-9719MS51922-61$6.30 2025-09
      5310-00-199-7736MS51922-62M45913/1-12FS3
      5310-01-256-0415MS51922-64M45913/1-12FAA
      5310-00-225-6992MS51922-65M45913/1-14CG5C
      5310-00-225-6409MS51922-68M45913/1-14FG5C
      5310-00-205-3026MS51922-69M45913/1-14FS3
      5310-00-811-1377MS51922-72M45913/1-16CG5C$5.03 2025-10
      5310-01-196-0234MS51922-74
      5310-00-165-8303MS51922-76M45913/1-16FG5C
      5310-01-310-3967MS51922-77M45913/1-16FS3
      5310-01-281-3396MS51922-80M45913/1-18CG5C
      5310-00-112-1385MS51922-81M45913/1-18FG5C
      5310-00-176-6267MS51922-82M45913/1-20CG5C$9.46 2024-09
      5310-00-143-6145MS51922-83M45913/1-20FG5C
      5310-01-092-4236MS51922-85
      5310-01-017-0694MS51922-86M45913/1-24FG5C
      5310-01-182-7700MS51922-91M45913/1-6CG5$5.19 2025-11
      5310-01-236-1692MS51922-92

      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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