Cross reference · Hi-Shear (LISI Aerospace) · Extended washer self-locking nut
MN19 cross referenceSPS FN1014, Cherry T99C, Howmet H41L, MS21043
MN19 is a Hi-Shear extended washer self-locking nut series on 4 government stock numbers. Its closest equivalents are SPS FN1014, Cherry T99C, Howmet H41L, MS21043. Each one is labeled with how strong the evidence is.
- Issued by Hi-Shear
- Item Extended washer self-locking nut
- Stock numbers 4
- Equivalents 12
- DLA paid $0.38 to $1.39
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
Standards
- MS21043MSCatalog only, needs approvalon 4 of 4 stock numbers, 4 sizes
- NAS1291CNASCatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
- MS21043LMSCatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
2 more on one stock number each: MS210, MS21043C
- MS210MSCatalog only, needs approvalon 1 of 4 stock numbers
- MS21043CMSCatalog only, needs approvalon 1 of 4 stock numbers
Airframer and OEM drawings
4 more on one stock number each: 3M129C, 961C, B70159, ST16126
- 3M129CBoeingCatalog only, needs approvalon 1 of 4 stock numbers
- 961CCollins AerospaceCatalog only, needs approvalon 1 of 4 stock numbers
- B70159MBDACatalog only, needs approvalon 1 of 4 stock numbers
- ST16126BAE SystemsCatalog only, needs approvalon 1 of 4 stock numbers
Plus 29 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for MN19
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for MN19. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 4 of 4 stock numbers, 102 awards from 2023-01-31 to 2026-04-27.
Latest award per stock number: $0.38 to $1.39 each.
DLA production lead time: 153 to 549 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
| NSN | MN19 | FN1014 | T99C | H41L | MS21043 | NAS1291C | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-844-3302 | MN19-3 | FN1014-1032 | T99C1032 | MS21043-3 | NAS1291C3 | $0.56 2025-02 | |
| 5310-00-878-3292 | MN19-04 | FN1014-440 | T99C440 | H41L04 | MS21043-04 | $0.38 2023-11 | |
| 5310-00-878-3291 | MN19-06 | FN1014-632 | T99C632 | H41L06 | MS21043-06 | $0.38 2026-04 | |
| 5310-00-878-7196 | MN19-08 | FN1014-832 | T99C832 | H41L08 | MS21043-08 | NAS1291C08 | $1.39 2025-10 |
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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