Cross reference · ESNA · Plate self-locking nut

RMLHTA517 cross referenceSPS 13715E, Howmet F2001, MS21062L

RMLHTA517 is a ESNA plate self-locking nut series on 7 government stock numbers. Its closest equivalents are SPS 13715E, Howmet F2001, MS21062L. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

7 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • 13715ESPS TechnologiesCatalog only, needs approvalon 7 of 7 stock numbers, 7 sizes
  • F2001Howmet Fastening SystemsCatalog only, needs approvalon 5 of 7 stock numbers, 6 sizes
  • NS103185SESPS TechnologiesCatalog only, needs approvalon 2 of 7 stock numbers, 2 sizes
  • VN151DHowmet Fastening SystemsCatalog only, needs approvalon 2 of 7 stock numbers, 2 sizes
8 more on one stock number each: BRF100C4M, RF1003MK, RF100C06M, RF100C06MK, RF100C08M, RF100C3M, RF100C4M, T66C1032CBCM
  • BRF100C4MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • RF1003MKHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • RF100C06MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • RF100C06MKHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • RF100C08MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • RF100C3MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • RF100C4MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 7 stock numbers
  • T66C1032CBCMCherry AerospaceCatalog only, needs approvalon 1 of 7 stock numbers

Standards

  • MS21062LMSCatalog only, needs approvalon 5 of 7 stock numbers, 5 sizes
2 more on one stock number each: MS21062L06K, MS21062L3K
  • MS21062L06KMSCatalog only, needs approvalon 1 of 7 stock numbers
  • MS21062L3KMSCatalog only, needs approvalon 1 of 7 stock numbers

Airframer and OEM drawings

    4 more on one stock number each: 9666M44P, BACN10KB3CFM, BACN10KB4CFM, Z00N
    • 9666M44PGECatalog only, needs approvalon 1 of 7 stock numbers
    • BACN10KB3CFMBoeingCatalog only, needs approvalon 1 of 7 stock numbers
    • BACN10KB4CFMBoeingCatalog only, needs approvalon 1 of 7 stock numbers
    • Z00NDaherCatalog only, needs approvalon 1 of 7 stock numbers

    Plus 5 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

    Get quotes for RMLHTA517

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

    Install tooling

    SpecLok has no catalog family for RMLHTA517. Tooling for the equivalents:

    None of the equivalents is in the SpecLok catalog yet.

    What the government paid

    DLA awards on 1 of 7 stock numbers, 1 awards from 2026-06-15 to 2026-06-15.

    Latest award per stock number: $1.35 each.

    DLA production lead time: 90 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

    7 stock numbers
    Part numbers DLA FLIS lists for RMLHTA517 and its equivalents, by stock number
    NSNRMLHTA51713715EF2001T66C1032CBCMMS21062L9666M44PLast DLA price
    5310-00-778-9160RMLHTA517-2860-0213715E-02F2001-3MS21062L39666M44P01
    5310-00-900-3865RMLHTA517-2860-04813715E-048F2001-4BACMS21062L4
    5310-01-042-5575RMLHTA517-2860-05413715E-054F2001-5MS21062L5
    5310-00-778-9166RMLHTA517-2860-6213715E-62MS21062L06$1.35 2026-06
    5310-00-778-9161RMLHTA517-2860-8213715E-82MS21062L08
    5310-00-900-3864RMLHTA517-2860-02BC13715E-02BCF2001-3BCT66C1032CBCM
    5310-00-778-9186RMLHTA517-2860-62BC13715E-62BCF2001-06BC

    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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