Cross reference · Boeing · Extended washer self-locking nut

BACN10B cross referenceSPS 47FW, Howmet H29523

BACN10B is a Boeing extended washer self-locking nut series on 11 government stock numbers. Its closest equivalents are SPS 47FW, Howmet H29523. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

11 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • 47FWSPS TechnologiesCatalog only, needs approvalon 3 of 11 stock numbers, 3 sizes
  • H29523Howmet Fastening SystemsCatalog only, needs approvalon 3 of 11 stock numbers, 3 sizes
  • 42FWSPS TechnologiesCatalog only, needs approvalon 2 of 11 stock numbers, 2 sizes
  • FN22ASPS TechnologiesCatalog only, needs approvalon 2 of 11 stock numbers, 2 sizes
  • LH3393SPS TechnologiesCatalog only, needs approvalon 2 of 11 stock numbers, 2 sizes
  • VN406Howmet Fastening SystemsCatalog only, needs approvalon 2 of 11 stock numbers, 2 sizes
6 more on one stock number each: 48FLW, 57585K, H29524, LH3849, VN465A, VN465C
  • 48FLWSPS TechnologiesCatalog only, needs approvalon 1 of 11 stock numbers
  • 57585KSPS TechnologiesCatalog only, needs approvalon 1 of 11 stock numbers
  • H29524Howmet Fastening SystemsCatalog only, needs approvalon 1 of 11 stock numbers
  • LH3849SPS TechnologiesCatalog only, needs approvalon 1 of 11 stock numbers
  • VN465AHowmet Fastening SystemsCatalog only, needs approvalon 1 of 11 stock numbers
  • VN465CHowmet Fastening SystemsCatalog only, needs approvalon 1 of 11 stock numbers

Standards

    1 more on one stock number each: NAS1805
    • NAS1805NASCatalog only, needs approvalon 1 of 11 stock numbers

    Airframer and OEM drawings

      2 more on one stock number each: GN10AJ, U118131
      • GN10AJNorthrop GrummanCatalog only, needs approvalon 1 of 11 stock numbers
      • U118131Rolls-RoyceCatalog only, needs approvalon 1 of 11 stock numbers

      Plus 8 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

      Get quotes for BACN10B

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

      Install tooling

      SpecLok has no catalog family for BACN10B. Tooling for the equivalents:

      None of the equivalents is in the SpecLok catalog yet.

      What the government paid

      DLA awards on 3 of 11 stock numbers, 138 awards from 2023-07-14 to 2026-09-15.

      Latest award per stock number: $7.14 to $158.16 each.

      DLA production lead time: 149 to 270 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

      11 stock numbers
      Part numbers DLA FLIS lists for BACN10B and its equivalents, by stock number
      NSNBACN10B47FWH29523Last DLA price
      5310-00-931-7098BACN10B17$61.13 2026-03
      5310-00-781-3999BACN10B106
      5310-00-272-6420BACN10B408
      5310-00-979-8955BACN10B48247FW1812
      5310-00-106-3143BACN10B51247FW2012$158.16 2026-09
      5310-00-106-3144BACN10B52247FW2212
      5310-00-805-6722BACN10B-9L
      5310-00-803-2598BACN10B-L4LH29523-4
      5310-00-680-5210BACN10B-L6LH29523-6$7.14 2025-09
      5310-00-840-1166BACN10B-L7LH29523-7
      5310-01-525-5325BACN10B-L8L

      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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