Cross reference · ESNA · Plate self-locking nut
LHTA521 cross referenceHowmet F5031, MS21060
LHTA521 is a ESNA plate self-locking nut series on 9 government stock numbers. It is cross-referenced to Howmet F5031, MS21060. Each one is labeled with how strong the evidence is.
- Issued by ESNA
- Item Plate self-locking nut
- Stock numbers 9
- Cross-referenced series 14
- DLA paid $1.05 to $1.85
Series in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- F5031Howmet Fastening SystemsCatalog only, needs approvalon 5 of 9 stock numbers, 5 sizes
- RF200CHowmet Fastening SystemsCatalog only, needs approvalon 4 of 9 stock numbers, 4 sizes
10 more on one stock number each: RF2000C4K, RF2000C4W, RF200C04K, RF200C08K, RF200C3K, T65C1032CBC, T65C428CBC, T65C428CPWB, T65C440C, T65C440CBC
- RF2000C4KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
- RF2000C4WHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
- RF200C04KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
- RF200C08KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
- RF200C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 9 stock numbers
- T65C1032CBCCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
- T65C428CBCCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
- T65C428CPWBCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
- T65C440CCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
- T65C440CBCCherry AerospaceCatalog only, needs approvalon 1 of 9 stock numbers
Standards
- MS21060MSCatalog only, needs approvalon 9 of 9 stock numbers, 9 sizes
1 more on one stock number each: NASM21060
- NASM21060NASCatalog only, needs approvalon 1 of 9 stock numbers
Plus 6 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for LHTA521
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for LHTA521. Tooling for the cross-referenced series:
None of these series is in the SpecLok catalog yet.
What the government paid
DLA awards on 4 of 9 stock numbers, 8 awards from 2023-11-27 to 2026-03-18.
Latest award per stock number: $1.05 to $1.85 each.
DLA production lead time: 214 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 | LHTA521 | F5031 | T65C1032CBC | MS21060 | NASM21060 | Last DLA price |
|---|---|---|---|---|---|---|
| 5310-00-780-1052 | LHTA521-2860-40 | F5031-04 | MS21060-04 | |||
| 5310-00-779-6769 | LHTA521-2860-054 | MS21060-5 | ||||
| 5310-00-780-1049 | LHTA521-2860-62 | MS21060-06 | $1.25 2024-10 | |||
| 5310-00-780-1046 | LHTA521-2860-82 | F5031-08 | MS21060-08 | $1.83 2025-11 | ||
| 5310-00-780-1044 | LHTA521-2860-02BC | T65C1032CBC | MS21060-3K | $1.05 2026-03 | ||
| 5310-00-779-6811 | LHTA521-2860-048BC | F5031-4BC | MS21060-4K | |||
| 5310-00-780-1050 | LHTA521-2860-40BC | MS21060-04K | ||||
| 5310-00-780-1045 | LHTA521-2860-82BC | F5031-08BC | MS21060-08K | $1.85 2025-09 | ||
| 5310-00-780-1042 | LHTA521-2860P-048 | F5031-4P | MS21060-4W | NASM21060-4W |
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 LHTA521 or an equivalent
Get quotes adds the part and its install tooling to your quote. Check another part number in the cross reference.