Cross reference · Howmet Fastening Systems · Plate self-locking nut
K1001 cross referenceSPS 12700E, ESNA RMLHTA51, MS21048L
K1001 is a Howmet plate self-locking nut series on 10 government stock numbers. Its closest equivalents are SPS 12700E, ESNA RMLHTA51, MS21048L. Each one is labeled with how strong the evidence is.
- Issued by Howmet Fastening Systems
- Item Plate self-locking nut
- Stock numbers 10
- Equivalents 24
- DLA paid $1.64 to $80.00
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- 12700ESPS TechnologiesCatalog only, needs approvalon 7 of 10 stock numbers, 7 sizes
- RMLHTA51ESNACatalog only, needs approvalon 5 of 10 stock numbers, 5 sizes
10 more on one stock number each: 109A, NS103202SE, NS103714, T2C1032BCM, T2C1032M, T2C440M, T2C524M, T2C624M, T2C632M, T2C63PWBM
- 109AESNACatalog only, needs approvalon 1 of 10 stock numbers
- NS103202SESPS TechnologiesCatalog only, needs approvalon 1 of 10 stock numbers
- NS103714SPS TechnologiesCatalog only, needs approvalon 1 of 10 stock numbers
- T2C1032BCMCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
- T2C1032MCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
- T2C440MCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
- T2C524MCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
- T2C624MCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
- T2C632MCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
- T2C63PWBMCherry AerospaceCatalog only, needs approvalon 1 of 10 stock numbers
Standards
- MS21048LMSCatalog only, needs approvalon 6 of 10 stock numbers, 5 sizes
- NASM21048NASCatalog only, needs approvalon 2 of 10 stock numbers
- NASM21048LNASCatalog only, needs approvalon 2 of 10 stock numbers, 2 sizes
7 more on one stock number each: MS21048, MS21048L06K, MS21048L3K, NAS680C08M, NASM25027, MS21048L06W, MS21848L06W
- MS21048MSCatalog only, needs approvalon 1 of 10 stock numbers
- MS21048L06KMSCatalog only, needs approvalon 1 of 10 stock numbers
- MS21048L3KMSCatalog only, needs approvalon 1 of 10 stock numbers
- NAS680C08MNASCatalog only, needs approvalon 1 of 10 stock numbers
- NASM25027NASCatalog only, needs approvalon 1 of 10 stock numbers
- MS21048L06WMSCatalog only, needs approvalon 1 of 10 stock numbers
- MS21848L06WMSCatalog only, needs approvalon 1 of 10 stock numbers
Airframer and OEM drawings
2 more on one stock number each: BACN10JR3CM, Z00N
- BACN10JR3CMBoeingCatalog only, needs approvalon 1 of 10 stock numbers
- Z00NDaherCatalog only, needs approvalon 1 of 10 stock numbers
Plus 15 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for K1001
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for K1001. Tooling for the equivalents:
- Self-locking nutplates (MS21047, MS21059, MS21069, MS21078; rivetless ForceTec) tooling for MS21048L, MS21048, MS21048L06K, MS21048L3K
What the government paid
DLA awards on 4 of 10 stock numbers, 15 awards from 2023-02-13 to 2026-05-18.
Latest award per stock number: $1.64 to $80.00 each.
DLA production lead time: 33 to 230 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 | K1001 | 12700E | RMLHTA51 | T2C1032BCM | MS21048L | NASM21048 | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-766-6649 | K1001-04 | 12700E-40 | RMLHTA51-2860-40 | MS21048L04 | |||
| 5310-00-777-6320 | K1001-5 | MS21048L5 | $2.25 2024-12 | ||||
| 5310-00-766-6652 | K1001-06 | 12700E-62 | RMLHTA51-2860-62 | MS21048L06 | NASM21048 | ||
| 5310-00-777-6322 | K1001-6 | 12700E-064 | MS21048L6 | $11.03 2024-09 | |||
| 5310-00-772-3706 | K1001-7 | ||||||
| 5310-00-766-6653 | K1001-08 | 12700E-82 | RMLHTA51-2860-82 | MS21048L08 | NASM21048 | $1.64 2026-05 | |
| 5310-01-191-1432 | K1001-06BC | 12700E-62BC | |||||
| 5310-00-392-2269 | K1001-06P | ||||||
| 5310-00-782-7094 | K1001-3BAC | 12700E-02 | RMLHTA51-2860-02 | MS21048L3 | |||
| 5310-00-776-1935 | K1001-3BC | 12700E-02BC | RMLHTA51-2860-02BC | T2C1032BCM | $80.00 2026-03 |
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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