Cross reference · Boeing · Plate self-locking nut

BACN10LK5A cross referenceSPS MA13601, Howmet MF19058, ESNA RM52LHA3006M, Northrop S987DC

BACN10LK5A is a Boeing plate self-locking nut series on 5 government stock numbers. Its closest equivalents are SPS MA13601, Howmet MF19058, ESNA RM52LHA3006M, Northrop S987DC. 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

  • MA13601SPS TechnologiesCatalog only, needs approvalon 4 of 5 stock numbers, 4 sizes
  • MF19058Howmet Fastening SystemsCatalog only, needs approvalon 4 of 5 stock numbers, 4 sizes
  • RM52LHA3006MESNACatalog only, needs approvalon 3 of 5 stock numbers, 3 sizes
3 more on one stock number each: M13601, RFM22A, RMF22A
  • M13601SPS TechnologiesCatalog only, needs approvalon 1 of 5 stock numbers
  • RFM22AHowmet Fastening SystemsCatalog only, needs approvalon 1 of 5 stock numbers
  • RMF22AHowmet Fastening SystemsCatalog only, needs approvalon 1 of 5 stock numbers

Airframer and OEM drawings

  • S987DCNorthrop GrummanCatalog only, needs approvalon 2 of 5 stock numbers, 2 sizes
2 more on one stock number each: C068, NTA11454
  • C068Lockheed MartinCatalog only, needs approvalon 1 of 5 stock numbers
  • NTA11454LeonardoCatalog only, needs approvalon 1 of 5 stock numbers

Plus 3 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

Get quotes for BACN10LK5A

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

Install tooling

SpecLok has no catalog family for BACN10LK5A. Tooling for the equivalents:

None of the equivalents is in the SpecLok catalog yet.

What the government paid

DLA awards on 2 of 5 stock numbers, 16 awards from 2023-05-22 to 2026-09-09.

Latest award per stock number: $3.80 to $3.83 each.

DLA production lead time: 72 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

5 stock numbers
Part numbers DLA FLIS lists for BACN10LK5A and its equivalents, by stock number
NSNBACN10LK5AMA13601MF19058RM52LHA3006MS987DCC068Last DLA price
5310-01-631-3486BACN10LK5A32
5310-00-820-3007BACN10LK5A33MA13601-02-3MF19058-3-3RM52LHA3006M3-02S987DC3-3
5310-00-825-6487BACN10LK5A34MA13601-02-4MF19058-3-4RM52LHA3006M-4-02S987DC3-4C068-02-4$3.80 2025-09
5310-00-825-6486BACN10LK5A35MA13601-02-5MF19058-3-5RM52LHA3006M5-02$3.83 2026-09
5310-01-333-4531BACN10LK5A56MA13601-054-6MF19058-5-6

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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