Operating signal within 12 months from two or more independent sources.
What they make
Hardware Manufacturing332510Hartwell Corporation manufactures aerospace latching systems, including aircraft latches, hinges, hold downs, and door systems for commercial aviation, military aviation, regional and business jets, and helicopters. The company operates business units focused on access panels, heavy duty applications, and propulsion systems, and provides repair station services, design, and manufacturing capabilities.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Products
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Lian Corporation | Placentia | Fabricated Structural Metal Manufacturing 332312 | LIKELY ACTIVE | 0.3 KM |
| Precision Advanced Machining LLC | Anaheim | Machine Shops 332710 | LIKELY ACTIVE | 1.3 KM |
| Precision Waterjet INC | Anaheim | Machine Shops 332710 | ACTIVE | 1.4 KM |
| Marine Industries West LLC | Anaheim | Hardware Manufacturing 332510 | LIKELY ACTIVE | 3.8 KM |
| M & R Engineering CO. | Orange | Precision Turned Product Manufacturing 332721 | ACTIVE | 5.1 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 8 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
EPA cross-references this facility in BR, CA-ENVIROVIEW, HWTS-DATAMART, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | SEP 2025 | SEP 2025 |
| EPA FRS | EXISTENCE | JUN 2017 | AUG 2024 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | SEP 2025 |
| CAGE CODE | SAM GOV | SEP 2025 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | SEP 2025 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | SEP 2025 |
| REGISTRATION EXPIRATION | SAM GOV | SEP 2025 |
| STATE | EPA FRS | JUL 2026 |
| STATE | SAM GOV | SEP 2025 |
| WEBSITE | SAM GOV | SEP 2025 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.


