Cross reference · ESNA · Plate self-locking nut
RMLHTA51M cross referenceHowmet MK1001, SPS M12700E
RMLHTA51M is a ESNA plate self-locking nut series on 6 government stock numbers. Its closest equivalents are Howmet MK1001, SPS M12700E. Each one is labeled with how strong the evidence is.
- Issued by ESNA
- Item Plate self-locking nut
- Stock numbers 6
- Equivalents 19
- DLA paid $1.19
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- MK1001Howmet Fastening SystemsCatalog only, needs approvalon 3 of 6 stock numbers, 3 sizes
- M12700ESPS TechnologiesCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
10 more on one stock number each: BRM200C4M, MT2C1032BCM, MT2C428M, MT2C832BCM, NS103197SE, RM200C08MK, RM200C3MK, RM200C4M, T6S632WCP, T8080C
- BRM200C4MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- MT2C1032BCMCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
- MT2C428MCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
- MT2C832BCMCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
- NS103197SESPS TechnologiesCatalog only, needs approvalon 1 of 6 stock numbers
- RM200C08MKHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- RM200C3MKHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- RM200C4MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- T6S632WCPCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
- T8080CCherry AerospaceCatalog only, needs approvalon 1 of 6 stock numbers
Standards
6 more on one stock number each: NAS697C06M, NAS697C08M, NAS697C3M, MS21070L, MS21070L08K, MS21070L3K
- NAS697C06MNASCatalog only, needs approvalon 1 of 6 stock numbers
- NAS697C08MNASCatalog only, needs approvalon 1 of 6 stock numbers
- NAS697C3MNASCatalog only, needs approvalon 1 of 6 stock numbers
- MS21070LMSCatalog only, needs approvalon 1 of 6 stock numbers
- MS21070L08KMSCatalog only, needs approvalon 1 of 6 stock numbers
- MS21070L3KMSCatalog only, needs approvalon 1 of 6 stock numbers
Airframer and OEM drawings
1 more on one stock number each: BACN10JP4ACM
- BACN10JP4ACMBoeingCatalog 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 RMLHTA51M
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for RMLHTA51M. Tooling for the equivalents:
None of the equivalents is in the SpecLok catalog yet.
What the government paid
DLA awards on 1 of 6 stock numbers, 1 awards from 2025-11-04 to 2025-11-04.
Latest award per stock number: $1.19 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 | RMLHTA51M | MK1001 | M12700E | MT2C1032BCM | NAS697C06M | MS21070L | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-833-8185 | RMLHTA51M2860-02 | ||||||
| 5310-00-728-9459 | RMLHTA51M2860-048 | MK1001-4BAC | M12700E-048 | MS21070L4 | $1.19 2025-11 | ||
| 5310-00-821-0136 | RMLHTA51M2860-62 | NAS697C06M | |||||
| 5310-00-838-7823 | RMLHTA51M2860-82 | ||||||
| 5310-00-762-7451 | RMLHTA51M2860-02BC | MK1001-3BC | MT2C1032BCM | ||||
| 5310-00-762-6132 | RMLHTA51M2860-82BC | MK1001-08BC | M12700E-82BC |
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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