Cross reference · MS (US military standards) · Extended washer self-locking nut

MS21042L cross referenceSPS FN12M, Cherry T98S, Daher Z00N

MS21042L is a extended washer self-locking nut series on 12 government stock numbers. Its closest equivalents are SPS FN12M, Cherry T98S, Daher Z00N. Each one is labeled with how strong the evidence is.

Equivalents in the government catalog

12 stock numbers

Catalog-only listings need engineering approval before you substitute.

Manufacturers

  • FN12MSPS TechnologiesCatalog only, needs approvalon 7 of 12 stock numbers, 7 sizes
  • T98SCherry AerospaceCatalog only, needs approvalon 7 of 12 stock numbers, 7 sizes
  • RM52LHSPS TechnologiesCatalog only, needs approvalon 6 of 12 stock numbers, 6 sizes
  • H14LHowmet Fastening SystemsCatalog only, needs approvalon 2 of 12 stock numbers, 2 sizes
  • MN16PJHi-ShearCatalog only, needs approvalon 2 of 12 stock numbers, 2 sizes
4 more on one stock number each: HL04, AS8600B, FN12MLM, VN300A
  • HL04Howmet Fastening SystemsCatalog only, needs approvalon 1 of 12 stock numbers
  • AS8600BLISI AerospaceCatalog only, needs approvalon 1 of 12 stock numbers
  • FN12MLMSPS TechnologiesCatalog only, needs approvalon 1 of 12 stock numbers
  • VN300AHowmet Fastening SystemsCatalog only, needs approvalon 1 of 12 stock numbers

Standards

  • NAS1291NASCatalog only, needs approvalon 2 of 12 stock numbers, 3 sizes
  • NAS679ANASCatalog only, needs approvalon 2 of 12 stock numbers, 2 sizes
1 more on one stock number each: NASM21042
  • NASM21042NASCatalog only, needs approvalon 1 of 12 stock numbers, 2 sizes

Airframer and OEM drawings

  • Z00NDaherCatalog only, needs approvalon 5 of 12 stock numbers, 5 sizes
3 more on one stock number each: 107B8156P, 1484C, GN10U
  • 107B8156PBAE SystemsCatalog only, needs approvalon 1 of 12 stock numbers
  • 1484CCollins AerospaceCatalog only, needs approvalon 1 of 12 stock numbers
  • GN10UNorthrop GrummanCatalog only, needs approvalon 1 of 12 stock numbers

Plus 49 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).

Get quotes for MS21042L

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

Install tooling

SpecLok has no catalog family for MS21042L. Tooling for the equivalents:

What the government paid

DLA awards on 6 of 12 stock numbers, 175 awards from 2023-07-10 to 2026-09-03.

Latest award per stock number: $0.16 to $10.50 each.

DLA production lead time: 30 to 405 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

12 stock numbers
Part numbers DLA FLIS lists for MS21042L and its equivalents, by stock number
NSNMS21042LFN12MT98SH14LMN16PJNAS1291Last DLA price
5310-00-880-7010MS21042L02H14L02NAS1291-002$1.00 2026-04
5310-01-528-3915MS21042L03
5310-00-807-1474MS21042L3FN12M02T98S1032$0.23 2026-08
5310-00-807-1471MS21042L04FN12M-40T98S440$0.18 2026-09
5310-00-807-1475MS21042L4FN12M-048T98S428
5310-01-306-3518MS21042L05
5310-00-807-1476MS21042L5FN12M054T98S524NAS1291-5
5310-00-807-1472MS21042L06FN12M-62T98S632H14L06MN16PJ06$0.45 2026-06
5310-00-807-1477MS21042L6FN12M-064T98S624$10.50 2026-07
5310-01-609-0081MS21042L7
5310-00-807-1473MS21042L08FN12M82T98S832MN16PJ08$0.16 2026-06
5310-01-614-1522MS21042L10

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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