Cross reference · MS (US military standards) · Plate self-locking nut
MS21050 cross referenceHowmet K1131, ESNA LHTA58, SPS 15700E, Cherry T2CH
MS21050 is a plate self-locking nut series on 6 government stock numbers. Its closest equivalents are Howmet K1131, ESNA LHTA58, SPS 15700E, Cherry T2CH. Each one is labeled with how strong the evidence is.
- Issued by MS
- Item Plate self-locking nut
- Stock numbers 6
- Equivalents 11
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- K1131Howmet Fastening SystemsCatalog only, needs approvalon 3 of 6 stock numbers, 3 sizes
- LHTA58ESNACatalog only, needs approvalon 3 of 6 stock numbers, 3 sizes
- R2100CHowmet Fastening SystemsCatalog only, needs approvalon 3 of 6 stock numbers, 3 sizes
- 15700ESPS TechnologiesCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- T2CHCherry AerospaceCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
4 more on one stock number each: R2100C08K, R2100C3K, T2CH1032BC, T2CH832BC
- R2100C08KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- R2100C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- T2CH1032BCCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
- T2CH832BCCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
Standards
2 more on one stock number each: NASM21050, AN361WC
- NASM21050NASCatalog only, needs approvalon 1 of 6 stock numbers
- AN361WCANCatalog only, needs approvalon 1 of 6 stock numbers
Plus 2 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for MS21050
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for MS21050. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
Sizes by maker
| NSN | MS21050 | K1131 | LHTA58 | 15700E | T2CH | NASM21050 | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-782-0011 | MS21050-3 | ||||||
| 5310-00-772-7946 | MS21050-4 | K1131-4 | LHTA58-2860-048 | T2CH428 | |||
| 5310-00-772-7948 | MS21050-08 | K1131-08 | LHTA58-2860-82 | T2CH832 | |||
| 5310-00-772-7958 | MS21050-08K | K1131-08BC | LHTA58-2860-82BC | 15700E-82BC | NASM21050 | ||
| 5310-00-772-7942 | MS21050-3K | 15700E-02BC | |||||
| 5310-00-639-1953 | MS21050-3W |
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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