Cross reference · MS (US military standards) · Plate self-locking nut
MS21059 cross referenceESNA F52LHTA, SPS 13605NM, Howmet RF200X
MS21059 is a plate self-locking nut series on 13 government stock numbers. It is cross-referenced to ESNA F52LHTA, SPS 13605NM, Howmet RF200X. Each one is labeled with how strong the evidence is.
- Issued by MS
- Item Plate self-locking nut
- Stock numbers 13
- Cross-referenced series 13
- DLA paid $0.22 to $5.32
Series in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- F52LHTAESNACatalog only, needs approvalon 10 of 13 stock numbers, 10 sizes
- 13605NMSPS TechnologiesCatalog only, needs approvalon 7 of 13 stock numbers, 7 sizes
- RF200XHowmet Fastening SystemsCatalog only, needs approvalon 7 of 13 stock numbers, 5 sizes
- 13650NMSPS TechnologiesCatalog only, needs approvalon 4 of 13 stock numbers, 4 sizes
- 52LHTAESNACatalog only, needs approvalon 2 of 13 stock numbers, 2 sizes
- F5000Howmet Fastening SystemsCatalog only, needs approvalon 2 of 13 stock numbers, 2 sizes
6 more on one stock number each: 13605P, RE200X, RF200X06K, RF200X08K, RF200X3K, RF200X4K
- 13605PSPS TechnologiesCatalog only, needs approvalon 1 of 13 stock numbers
- RE200XHowmet Fastening SystemsCatalog only, needs approvalon 1 of 13 stock numbers
- RF200X06KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 13 stock numbers
- RF200X08KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 13 stock numbers
- RF200X3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 13 stock numbers
- RF200X4KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 13 stock numbers
Standards
1 more on one stock number each: NAS686X
- NAS686XNASCatalog only, needs approvalon 1 of 13 stock numbers
Plus 5 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for MS21059
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
Self-locking nutplates (MS21047, MS21059, MS21069, MS21078; rivetless ForceTec) tooling (riveted: nutplate drill (two holes at once) and rivets per the design; rivetless forcetec: fti mandrel, split sleeve and puller)
Self-locking nutplates (MS21047, MS21059, MS21069, MS21078; rivetless ForceTec) in the catalog
What the government paid
DLA awards on 7 of 13 stock numbers, 92 awards from 2023-03-22 to 2026-09-14.
Latest award per stock number: $0.22 to $5.32 each.
DLA production lead time: 83 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 | MS21059 | F52LHTA | 13605NM | RF200X | Last DLA price |
|---|---|---|---|---|---|
| 5310-00-778-2655 | MS21059-3 | F52LHTA521-02 | 13605NM-02 | RF200X3 | $0.22 2026-09 |
| 5310-00-777-5770 | MS21059-04 | F52LHTA521-40 | 13605NM-40 | RF200X04 | |
| 5310-00-777-5769 | MS21059-4 | F52LHTA521-048 | 13605NM-0948 | RF200X4 | $0.87 2026-05 |
| 5310-00-777-5774 | MS21059-5 | F52LHTA521-054 | 13605NM-054 | RF200X5 | $3.40 2026-05 |
| 5310-00-777-5776 | MS21059-06 | F52LHTA521-62 | 13605NM-62 | RF200X06 | |
| 5310-00-777-5778 | MS21059-6 | F52LHTA521-064 | 13605NM-064 | RF200X6 | $5.32 2025-12 |
| 5310-00-777-5779 | MS21059-08 | 13605NM-82 | RF200X08 | $0.77 2026-04 | |
| 5310-01-671-9518 | MS21059-8 | ||||
| 5310-00-777-5777 | MS21059-06K | F52LHTA521-62BC | |||
| 5310-00-777-5780 | MS21059-08K | F52LHTA521-82BC | $0.76 2023-05 | ||
| 5310-00-900-3866 | MS21059-3K | F52LHTA521-02BC | |||
| 5310-00-777-5771 | MS21059-4K | F52LHTA521-048BC | $1.20 2026-02 | ||
| 5310-01-112-1762 | MS21059-5K |
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.
Reference only: the controlling drawing, its process spec and the manufacturer's installation instructions govern. How to use these answers
Next · 3 Quote
Quote MS21059 or an equivalent
Get quotes adds the part and its install tooling to your quote. Check another part number in the cross reference.