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

VN151A cross referenceSPS NS103185, ESNA RM52LHTA, MS21061L

VN151A is a Howmet plate self-locking nut series on 5 government stock numbers. Its closest equivalents are SPS NS103185, ESNA RM52LHTA, MS21061L. 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

  • NS103185SPS TechnologiesCatalog only, needs approvalon 4 of 5 stock numbers, 4 sizes
  • RM52LHTAESNACatalog only, needs approvalon 3 of 5 stock numbers, 3 sizes
8 more on one stock number each: 624S, T66S1032S, T66S428S, T66S832S, T8114S1032S, T8114S428S, T8114S524S, T8114S832S
  • 624SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T66S1032SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T66S428SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T66S832SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T8114S1032SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T8114S428SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T8114S524SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
  • T8114S832SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers

Standards

  • MS21061LMSCatalog only, needs approvalon 4 of 5 stock numbers, 4 sizes
1 more on one stock number each: NAS687A
  • NAS687ANASCatalog only, needs approvalon 1 of 5 stock numbers

Airframer and OEM drawings

    8 more on one stock number each: 2JC2772H, BACN10KB08F, BACN10KB3F, BACN10KB5F, BACN10KB6F, GN10AA, R401P, Z00N
    • 2JC2772HNorthrop GrummanCatalog only, needs approvalon 1 of 5 stock numbers
    • BACN10KB08FBoeingCatalog only, needs approvalon 1 of 5 stock numbers
    • BACN10KB3FBoeingCatalog only, needs approvalon 1 of 5 stock numbers
    • BACN10KB5FBoeingCatalog only, needs approvalon 1 of 5 stock numbers
    • BACN10KB6FBoeingCatalog only, needs approvalon 1 of 5 stock numbers
    • GN10AANorthrop GrummanCatalog only, needs approvalon 1 of 5 stock numbers
    • R401PGECatalog only, needs approvalon 1 of 5 stock numbers
    • Z00NDaherCatalog only, needs approvalon 1 of 5 stock numbers

    Plus 9 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

    Get quotes for VN151A

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

    Install tooling

    SpecLok has no catalog family for VN151A. Tooling for the equivalents:

    None of the equivalents is in the SpecLok catalog yet.

    What the government paid

    DLA awards on 4 of 5 stock numbers, 20 awards from 2023-07-07 to 2026-07-14.

    Latest award per stock number: $0.41 to $2.90 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

    5 stock numbers
    Part numbers DLA FLIS lists for VN151A and its equivalents, by stock number
    NSNVN151ANS103185RM52LHTA624SMS21061LNAS687ALast DLA price
    5310-00-778-9480VN151A1-02NS103185-02RM52LHTA517-02MS21061L3NAS687A3$0.52 2026-07
    5310-00-778-9482VN151A1-048RM52LHTA517-048MS21061L4$0.91 2026-05
    5310-00-778-9505VN151A1-054NS103185-054RM52LHTA517-054MS21061L5
    5310-00-825-6485VN151A1-064NS103185-064624S$2.90 2025-03
    5310-00-778-9511VN151A1-82NS103185-82MS21061L08$0.41 2024-02

    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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