Cross reference · ESNA · Plate self-locking nut
F52LHTA51M cross referenceSPS M12600NM, Howmet RM200X, MS21069
F52LHTA51M is a ESNA plate self-locking nut series on 5 government stock numbers. Its closest equivalents are SPS M12600NM, Howmet RM200X, MS21069. Each one is labeled with how strong the evidence is.
- Issued by ESNA
- Item Plate self-locking nut
- Stock numbers 5
- Equivalents 12
- DLA paid $0.53 to $0.55
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- M12600NMSPS TechnologiesCatalog only, needs approvalon 2 of 5 stock numbers, 2 sizes
- RM200XHowmet Fastening SystemsCatalog only, needs approvalon 2 of 5 stock numbers, 2 sizes
7 more on one stock number each: MA12600NM, MK1300, MT2S, MT2S1032BCCPC, MT2S428CPC, MT2S524DPC, RM200X3K
- MA12600NMSPS TechnologiesCatalog only, needs approvalon 1 of 5 stock numbers
- MK1300Howmet Fastening SystemsCatalog only, needs approvalon 1 of 5 stock numbers
- MT2SCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
- MT2S1032BCCPCCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
- MT2S428CPCCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
- MT2S524DPCCherry AerospaceCatalog only, needs approvalon 1 of 5 stock numbers
- RM200X3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 5 stock numbers
Standards
- MS21069MSCatalog only, needs approvalon 4 of 5 stock numbers, 4 sizes
1 more on one stock number each: NAS697A
- NAS697ANASCatalog only, needs approvalon 1 of 5 stock numbers
Airframer and OEM drawings
1 more on one stock number each: PF45470
- PF45470LeonardoCatalog 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 F52LHTA51M
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for F52LHTA51M. Tooling for the equivalents:
What the government paid
DLA awards on 2 of 5 stock numbers, 2 awards from 2025-07-21 to 2025-10-09.
Latest award per stock number: $0.53 to $0.55 each.
DLA production lead time: 209 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 | F52LHTA51M | M12600NM | RM200X | MT2S | MS21069 | NAS697A | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-655-5865 | F52LHTA51M40 | MT2S440 | NAS697A04 | $0.55 2025-07 | |||
| 5310-00-728-7704 | F52LHTA51M-048 | M12600NM-048 | RM200X4 | MS21069-4 | $0.53 2025-10 | ||
| 5310-00-728-7705 | F52LHTA51M-054 | RM200X5 | MS21069-5 | ||||
| 5310-00-958-5928 | F52LHTA51M82 | MS21069-08 | |||||
| 5310-00-728-7729 | F52LHTA51M-02BC | M12600NM-02BC | MS21069-3K |
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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