Cross reference · NAS (Aerospace Industries Association) · Plate self-locking nut
NASM21048 cross referenceSPS 12700E, ESNA RMLHTA51, Howmet K1001, Cherry T2C1032BC
NASM21048 is a plate self-locking nut series on 4 government stock numbers. Its closest equivalents are SPS 12700E, ESNA RMLHTA51, Howmet K1001, Cherry T2C1032BC. Each one is labeled with how strong the evidence is.
- Issued by NAS
- Item Plate self-locking nut
- Stock numbers 4
- Equivalents 14
- DLA paid $1.17 to $2.64
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- 12700ESPS TechnologiesCatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
- RMLHTA51ESNACatalog only, needs approvalon 3 of 4 stock numbers, 3 sizes
- K1001Howmet Fastening SystemsCatalog only, needs approvalon 2 of 4 stock numbers, 2 sizes
9 more on one stock number each: K1031, LHTA51, R2000C06M, R2000C08M, R2000C3K, R2000C4M, T2C1032BC, T2C428M, T2C632M
- K1031Howmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
- LHTA51ESNACatalog only, needs approvalon 1 of 4 stock numbers
- R2000C06MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
- R2000C08MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
- R2000C3KHowmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
- R2000C4MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 4 stock numbers
- T2C1032BCCherry AerospaceCatalog only, needs approvalon 1 of 4 stock numbers
- T2C428MCherry AerospaceCatalog only, needs approvalon 1 of 4 stock numbers
- T2C632MCherry AerospaceCatalog only, needs approvalon 1 of 4 stock numbers
Standards
Plus 4 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for NASM21048
Part number NASM21048
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for NASM21048. Tooling for the equivalents:
What the government paid
DLA awards on 3 of 4 stock numbers, 4 awards from 2024-11-14 to 2026-05-18.
Latest award per stock number: $1.17 to $2.64 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 | NASM21048 | 12700E | RMLHTA51 | K1001 | T2C1032BC | MS21048L | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-766-6651 | NASM21048 | 12700E-048 | RMLHTA51-2860-048 | MS21048L4 | $1.17 2025-08 | ||
| 5310-00-766-6652 | NASM21048 | 12700E-62 | RMLHTA51-2860-62 | K1001-06 | MS21048L06 | ||
| 5310-00-766-6653 | NASM21048 | 12700E-82 | RMLHTA51-2860-82 | K1001-08 | MS21048L08 | $1.64 2026-05 | |
| 5310-00-772-3962 | NASM21048 | T2C1032BC | $2.64 2025-11 |
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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