# Metro St. Louis Supplier Portal #698136

Bi-State solicitation for OEM door switch and air-compressor ring seal

**Posted:** September 30, 2026
**Respond By:** October 05, 2026
**Identifier:** 698136
**NAICS:** 423120, 423860

Bi-State Development / Metro St. Louis is seeking two OEM-only components for its transit operations.
- **Government buyer:** Bi-State Development / Metro St. Louis; buyer contact: Eric Beckert.
- **Requested products:**
  - Pressure-sensitive door switch, part number **DW40**; quantity not specified.
  - Ring seal for an air compressor, described as **A22x27 Al**; quantity not specified.
- **OEM and vendor information:** No manufacturer or vendor is named in the provided information.
- **Key requirement:** Items must meet Bi-State specifications; **substitutes are not permitted**.

### Description

The solicitation is for a switch pressure-sensitive door (DW40) and a ring seal air compressor component, A22x27 Al. The description identifies REQ 217280 and RFQ 698136. Items must be OEM and meet all Bi-State specifications; substitutes are not allowed.

[View original listing](https://supplier.metrostlouis.org/OA_HTML/OA.jsp?page=/metro/oracle/apps/pon/inquiry/webui/InquiryPG&BidderA=2&OAHP=POS_GUEST_REG_HP&OASF=PON_SEARCH&OAPB=PON_SOURCING_BRAND&ouid=7AABA0B224248626)