Cross reference · MS (US military standards) · Plate self-locking nut
MS21059L cross referenceHowmet F5000, SPS NS103203, ESNA RM52LHTA, Cherry T8091S
MS21059L is a plate self-locking nut series on 11 government stock numbers. Its closest equivalents are Howmet F5000, SPS NS103203, ESNA RM52LHTA, Cherry T8091S. Each one is labeled with how strong the evidence is.
- Issued by MS
- Item Plate self-locking nut
- Stock numbers 11
- Equivalents 21
- DLA paid $0.54 to $1.30
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- F5000Howmet Fastening SystemsCatalog only, needs approvalon 6 of 11 stock numbers, 9 sizes
- RF200AHowmet Fastening SystemsCatalog only, needs approvalon 5 of 11 stock numbers, 3 sizes
- NS103203SPS TechnologiesCatalog only, needs approvalon 4 of 11 stock numbers, 4 sizes
- RM52LHTAESNACatalog only, needs approvalon 4 of 11 stock numbers, 4 sizes
- T8091SCherry AerospaceCatalog only, needs approvalon 4 of 11 stock numbers, 6 sizes
- VN152AHowmet Fastening SystemsCatalog only, needs approvalon 4 of 11 stock numbers, 4 sizes
- BRF200AHowmet Fastening SystemsCatalog only, needs approvalon 2 of 11 stock numbers, 2 sizes
5 more on one stock number each: F1000, H65S1032S, MF1000, N202041, NS103218
- F1000Howmet Fastening SystemsCatalog only, needs approvalon 1 of 11 stock numbers
- H65S1032SCherry AerospaceCatalog only, needs approvalon 1 of 11 stock numbers
- MF1000Howmet Fastening SystemsCatalog only, needs approvalon 1 of 11 stock numbers
- N202041SPS TechnologiesCatalog only, needs approvalon 1 of 11 stock numbers
- NS103218SPS TechnologiesCatalog only, needs approvalon 1 of 11 stock numbers
Standards
- NAS686ANASCatalog only, needs approvalon 3 of 11 stock numbers, 2 sizes
1 more on one stock number each: NASM21059
- NASM21059NASCatalog only, needs approvalon 1 of 11 stock numbers
Airframer and OEM drawings
- Z00NDaherCatalog only, needs approvalon 4 of 11 stock numbers, 4 sizes
6 more on one stock number each: 575R975HO, BACN10JN, BACN10JR06F, BACN10JR4F, BACN10JR5F, BACN10LFF
- 575R975HONorthrop GrummanCatalog only, needs approvalon 1 of 11 stock numbers
- BACN10JNBoeingCatalog only, needs approvalon 1 of 11 stock numbers
- BACN10JR06FBoeingCatalog only, needs approvalon 1 of 11 stock numbers
- BACN10JR4FBoeingCatalog only, needs approvalon 1 of 11 stock numbers
- BACN10JR5FBoeingCatalog only, needs approvalon 1 of 11 stock numbers
- BACN10LFFBoeingCatalog only, needs approvalon 1 of 11 stock numbers
Plus 18 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for MS21059L
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 5 of 11 stock numbers, 90 awards from 2023-01-05 to 2026-09-10.
Latest award per stock number: $0.54 to $1.30 each.
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 | MS21059L | F5000 | NS103203 | RM52LHTA | T8091S | NAS686A | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-01-373-3890 | MS21059L03 | ||||||
| 5310-00-777-5791 | MS21059L3 | F5000-3T2 | RM52LHTA521-02 | NAS686A3 | $0.67 2026-09 | ||
| 5310-00-777-5782 | MS21059L04 | ||||||
| 5310-00-777-5793 | MS21059L4 | F5000-4BAC | NS103203-048 | T8091S428 | $0.89 2026-06 | ||
| 5310-00-777-5795 | MS21059L5 | F5000-5BAC | NS103203-054 | RM52LHTA521-054 | T8091S524 | ||
| 5310-00-777-5785 | MS21059L06 | F5000-06BAC | NS103203-62 | RM52LHTA521-62 | T8091S632 | NAS686A06 | $0.54 2026-04 |
| 5310-01-649-3017 | MS21059L06 | ||||||
| 5310-00-881-0715 | MS21059L6 | F5000-10-624 | RM52LHTA521-064 | NAS686A6 | $1.30 2026-04 | ||
| 5310-01-521-8346 | MS21059L7 | ||||||
| 5310-00-777-5787 | MS21059L08 | F5000-08BAC | NS103203-82 | T8091S832 | $0.60 2026-04 | ||
| 5310-01-429-8174 | MS21059L8 |
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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