Cross reference · ESNA · Plate self-locking nut
109A cross referenceSPS 12710E, Howmet F51747, Cherry T8110C, MS21052L
109A is a ESNA plate self-locking nut series on 6 government stock numbers. Its closest equivalents are SPS 12710E, Howmet F51747, Cherry T8110C, MS21052L. Each one is labeled with how strong the evidence is.
- Issued by ESNA
- Item Plate self-locking nut
- Stock numbers 6
- Equivalents 23
- DLA paid $4.75 to $5.13
Equivalents in the government catalog
Catalog-only listings need engineering approval before you substitute.
Manufacturers
- 12710ESPS TechnologiesCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- F51747Howmet Fastening SystemsCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- K2001Howmet Fastening SystemsCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- NS103184SESPS TechnologiesCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- NS202493SPS TechnologiesCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- T8110CCherry AerospaceCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
- VN101DHowmet Fastening SystemsCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
5 more on one stock number each: 12700E, BQCN10KE5ACD, BR1000C3M, BR1000C4M, BR2000C3M
- 12700ESPS TechnologiesCatalog only, needs approvalon 1 of 6 stock numbers
- BQCN10KE5ACDHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- BR1000C3MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- BR1000C4MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
- BR2000C3MHowmet Fastening SystemsCatalog only, needs approvalon 1 of 6 stock numbers
Standards
- MS21052LMSCatalog only, needs approvalon 2 of 6 stock numbers, 2 sizes
2 more on one stock number each: MS21048L, NASM21048L
- MS21048LMSCatalog only, needs approvalon 1 of 6 stock numbers
- NASM21048LNASCatalog only, needs approvalon 1 of 6 stock numbers
Airframer and OEM drawings
8 more on one stock number each: BACN10JP5DCM, BACN10JR3CM, BACN10KB3CM, BACN10KB4CM, BACN10KE4ACD, BACN10KE5ACD, T12C1032M, Z00N
- BACN10JP5DCMBoeingCatalog only, needs approvalon 1 of 6 stock numbers
- BACN10JR3CMBoeingCatalog only, needs approvalon 1 of 6 stock numbers
- BACN10KB3CMBoeingCatalog only, needs approvalon 1 of 6 stock numbers
- BACN10KB4CMBoeingCatalog only, needs approvalon 1 of 6 stock numbers
- BACN10KE4ACDBoeingCatalog only, needs approvalon 1 of 6 stock numbers
- BACN10KE5ACDBoeingCatalog only, needs approvalon 1 of 6 stock numbers
- T12C1032MRTXCatalog only, needs approvalon 1 of 6 stock numbers
- Z00NDaherCatalog only, needs approvalon 1 of 6 stock numbers
Plus 8 reference numbers whose issuer SpecLok does not identify (distributors and catalog agencies are not named).
Get quotes for 109A
Cited equivalents go on the request as acceptable alternates. Catalog-only listings do not.
Install tooling
SpecLok has no catalog family for 109A. Tooling for the equivalents:
What the government paid
DLA awards on 2 of 6 stock numbers, 4 awards from 2023-07-24 to 2026-04-23.
Latest award per stock number: $4.75 to $5.13 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 | 109A | 12710E | F51747 | T8110C | MS21052L | NASM21048L | Last DLA price |
|---|---|---|---|---|---|---|---|
| 5310-00-480-1926 | 109A920 | ||||||
| 5310-00-782-7094 | 109A9201-3 | NASM21048L3 | |||||
| 5310-00-732-0711 | 109A9207-3 | 12710E-02 | T8110C1032 | MS21052L3 | |||
| 5310-00-732-0769 | 109A9207-4 | 12710E-048 | T8110C428 | MS21052L4 | $4.75 2026-04 | ||
| 5310-01-338-3368 | 109A9212-4 | F51747-4-1CD | $5.13 2024-12 | ||||
| 5310-01-338-4101 | 109A9212-5 | F51747-5-1CD |
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.
Next · 3 Quote
Quote 109A or an equivalent
Get quotes adds the part and its install tooling to your quote. Check another part number in the cross reference.