Cross reference · Boeing · Plate self-locking nut

BACN10KE3B cross referenceHowmet F51750, SPS NS103191, ESNA RMF9213

BACN10KE3B is a Boeing plate self-locking nut series on 4 government stock numbers. Its closest equivalents are Howmet F51750, SPS NS103191, ESNA RMF9213. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

4 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • F51750Howmet Fastening SystemsCatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
  • NS103191SPS TechnologiesCatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
  • RMF9213ESNACatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes

Get quotes for BACN10KE3B

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

Install tooling

SpecLok has no catalog family for BACN10KE3B. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

What the government paid

DLA awards on 2 of 4 stock numbers, 6 awards from 2024-03-22 to 2025-12-09.

Latest award per stock number: $4.05 to $22.18 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

4 stock numbers
Part numbers DLA FLIS lists for BACN10KE3B and its equivalents, by stock number
NSNBACN10KE3BF51750NS103191RMF9213Last DLA price
5310-01-435-7132BACN10KE3B2$4.05 2024-09
5310-01-669-6889BACN10KE3B2
5310-01-241-2680BACN10KE3B3F51750-3-3NS103191-02-3RMF9213-3-3$22.18 2025-12
5310-01-087-4845BACN10KE3B4F51750-3-4NS103191-02-4RMF9213-4-3

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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