Cross reference · Howmet Fastening Systems · Plate self-locking nut
K2000 cross referenceESNA RM52LHTA, MS21051L
K2000 is a Howmet plate self-locking nut series on 13 government stock numbers. Its closest equivalents are ESNA RM52LHTA, MS21051L. Each one is labeled with how strong the evidence is.
- Issued by Howmet Fastening Systems
- Item Plate self-locking nut
- Stock numbers 13
- Equivalents 17
- DLA paid $0.33 to $3.95
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- RM52LHTAESNACatalog only, needs approvalon 6 of 13 stock numbers, 6 sizes
- NS103184SPS TechnologiesCatalog only, needs approvalon 3 of 13 stock numbers, 3 sizes
- RMA9207ESNACatalog only, needs approvalon 3 of 13 stock numbers, 3 sizes
- T8109SCherry AerospaceCatalog only, needs approvalon 3 of 13 stock numbers, 3 sizes
Standards
- MS21051LMSCatalog only, needs approvalon 5 of 13 stock numbers, 4 sizes
- NASM21051NASCatalog only, needs approvalon 3 of 13 stock numbers
5 more on one stock number each: MS21051, MS2105163, MS21051L3K, MS21051L4K, MS21051L5K
- MS21051MSCatalog only, needs approvalon 1 of 13 stock numbers
- MS2105163MSCatalog only, needs approvalon 1 of 13 stock numbers
- MS21051L3KMSCatalog only, needs approvalon 1 of 13 stock numbers
- MS21051L4KMSCatalog only, needs approvalon 1 of 13 stock numbers
- MS21051L5KMSCatalog only, needs approvalon 1 of 13 stock numbers
Airframer and OEM drawings
- BACN10KBBoeingCatalog only, needs approvalon 3 of 13 stock numbers, 3 sizes
3 more on one stock number each: 107B8152P, GN10AB, Z00N
- 107B8152PBAE SystemsCatalog only, needs approvalon 1 of 13 stock numbers
- GN10ABNorthrop GrummanCatalog only, needs approvalon 1 of 13 stock numbers
- Z00NDaherCatalog only, needs approvalon 1 of 13 stock numbers
Plus 10 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for K2000
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for K2000. Tooling for the equivalents:
- Self-locking nutplates (MS21047, MS21059, MS21069, MS21078; rivetless ForceTec) tooling for MS21051L, MS21051, MS2105163, MS21051L3K
What the government paid
DLA awards on 5 of 13 stock numbers, 5 awards from 2023-03-24 to 2026-04-28.
Latest award per stock number: $0.33 to $3.95 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 | K2000 | RM52LHTA | NS103184 | T8109S | MS21051L | NASM21051 | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-773-8648 | K2000-5 | RM52LHTA57-054 | MS21051L5 | ||||
| 5310-00-773-8649 | K2000-6 | MS21051L6 | NASM21051 | $2.00 2023-03 | |||
| 5310-00-773-8631 | K2000-08 | RM52LHTA57-82 | MS21051L08 | NASM21051 | $0.33 2023-11 | ||
| 5310-00-773-8642 | K2000-428 | RM52LHTA57-048 | MS21051L4 | NASM21051 | $1.29 2026-04 | ||
| 5310-00-773-8624 | K2000-632 | RM52LHTA57-62 | MS21051L06 | $0.96 2025-03 | |||
| 5310-00-530-9279 | K2000-1032 | ||||||
| 5310-00-468-3662 | K2000-06BAC | NS103184-62 | T8109S632 | ||||
| 5310-00-522-9472 | K2000-3BAC | NS103184-02 | T8109S1032 | $3.95 2026-02 | |||
| 5310-00-776-1951 | K2000-3BC | RM52LHTA57-02BC | |||||
| 5310-00-777-5831 | K2000-3BCCW | ||||||
| 5310-01-051-2742 | K2000-4BAC | NS103184-048 | T8109S428 | ||||
| 5310-00-777-5822 | K2000-4BC | RM52LHTA57-048BC | |||||
| 5310-00-777-5823 | K2000-5BC |
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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