Cross reference · MS (US military standards) · Plate self-locking nut
MS21062 cross referenceHowmet F2031, ESNA LHTA517
MS21062 is a plate self-locking nut series on 14 government stock numbers. Its closest equivalents are Howmet F2031, ESNA LHTA517. Each one is labeled with how strong the evidence is.
- Issued by MS
- Item Plate self-locking nut
- Stock numbers 14
- Equivalents 20
- DLA paid $0.75 to $6.43
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- F2031Howmet Fastening SystemsCatalog only, needs approvalon 10 of 14 stock numbers, 10 sizes
- LHTA517ESNACatalog only, needs approvalon 9 of 14 stock numbers, 9 sizes
- RF100CHowmet Fastening SystemsCatalog only, needs approvalon 4 of 14 stock numbers, 4 sizes
9 more on one stock number each: 101F, BRF100C, NS103085S, RF100C08K, RF100C3K, RF100C3W, RF100C4K, RF100C4W, T66C1032C
- 101FESNACatalog only, needs approvalon 1 of 14 stock numbers
- BRF100CHowmet Fastening SystemsCatalog only, needs approvalon 1 of 14 stock numbers
- NS103085SSPS TechnologiesCatalog only, needs approvalon 1 of 14 stock numbers
- RF100C08KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 14 stock numbers
- RF100C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 14 stock numbers
- RF100C3WHowmet Fastening SystemsCatalog only, needs approvalon 1 of 14 stock numbers
- RF100C4KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 14 stock numbers
- RF100C4WHowmet Fastening SystemsCatalog only, needs approvalon 1 of 14 stock numbers
- T66C1032CCherry AerospaceCatalog only, needs approvalon 1 of 14 stock numbers
Standards
2 more on one stock number each: NAS1032C, NASM21062
- NAS1032CNASCatalog only, needs approvalon 1 of 14 stock numbers
- NASM21062NASCatalog only, needs approvalon 1 of 14 stock numbers
Airframer and OEM drawings
6 more on one stock number each: 33A2765K, 33A27C08K, 33A27C3K, 33A27C4K, BACN10KB3CF, GN10BL
- 33A2765KLockheed MartinCatalog only, needs approvalon 1 of 14 stock numbers
- 33A27C08KLockheed MartinCatalog only, needs approvalon 1 of 14 stock numbers
- 33A27C3KLockheed MartinCatalog only, needs approvalon 1 of 14 stock numbers
- 33A27C4KLockheed MartinCatalog only, needs approvalon 1 of 14 stock numbers
- BACN10KB3CFBoeingCatalog only, needs approvalon 1 of 14 stock numbers
- GN10BLNorthrop GrummanCatalog only, needs approvalon 1 of 14 stock numbers
Plus 4 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for MS21062
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for MS21062. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 4 of 14 stock numbers, 13 awards from 2023-03-22 to 2026-04-23.
Latest award per stock number: $0.75 to $6.43 each.
DLA production lead time: 63 to 250 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 | MS21062 | F2031 | LHTA517 | Last DLA price |
|---|---|---|---|---|
| 5310-00-779-3601 | MS21062-3 | F2031-3BAC | $0.75 2025-03 | |
| 5310-01-497-4169 | MS21062-3 | |||
| 5310-01-203-5306 | MS21062-04 | F2031-04 | ||
| 5310-00-779-3597 | MS21062-4 | $6.43 2026-04 | ||
| 5310-00-783-7897 | MS21062-5 | F2031-5 | LHTA517-2860-054 | |
| 5310-00-778-9127 | MS21062-06 | F2031-06 | LHTA517-2860-62 | $0.95 2024-04 |
| 5310-00-823-8805 | MS21062-6 | |||
| 5310-00-778-9124 | MS21062-08 | LHTA517-2860-82 | ||
| 5310-00-778-9123 | MS21062-08K | F2031-08BC | LHTA517-2860-82BC | |
| 5310-00-779-3605 | MS21062-3K | F2031-3BC | LHTA517-2860-02BC | $3.45 2026-04 |
| 5310-00-539-5114 | MS21062-3W | F2031-3P | LHTA517-2860P-02 | |
| 5310-00-779-3600 | MS21062-4K | F2031-4BC | LHTA517-2860-048BC | |
| 5310-00-557-4672 | MS21062-4W | F2031-4P | LHTA517-2860P-048 | |
| 5310-00-779-3609 | MS21062-5K | F2031-5BC | LHTA517-2860-054BC |
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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