# DIBBS #SPE7M8-26-T-6578

DLA Solicitation for 20 Proximity Switches (NSN 5930-01-538-8191) from Lake Shore Systems, Inc. and Topworx Inc

**Posted:** September 11, 2026
**Respond By:** September 21, 2026
**Identifier:** SPE7M8-26-T-6578
**NAICS:** 335313, 335314

The Defense Logistics Agency (DLA) Land and Maritime Electrical Devices Division is soliciting offers for proximity switches.
- Government Buyer:
  - Defense Logistics Agency (DLA), Land and Maritime Electrical Devices Division
- OEMs and Vendors:
  - Lake Shore Systems, Inc. (part number 7D3-07765 REV R ITEM 34)
  - Topworx Inc (part number 73-13568-A4)
- Products/Services Requested:
  - 20 units of Switch, Proximity (NSN 5930-01-538-8191)
    - Part numbers: 7D3-07765 REV R ITEM 34 (Lake Shore Systems, Inc.), 73-13568-A4 (Topworx Inc)
- Unique or Notable Requirements:
  - Delivery required within 168 days from contract date to DLA Distribution, New Cumberland, PA
  - Detailed packaging, marking, and hazardous material requirements apply
  - Prohibition on use of covered defense telecommunications equipment
  - Only approved sources (Lake Shore Systems, Inc. and Topworx Inc) are referenced

### Description

SWITCH, PROXIMITY (QTY: 20, NSN: 5930-01-538-8191, Purchase Request: 7018272533)
  Approved Sources:
  - CAGE: 04553, Part No: 73-13568-A4
  - CAGE: 34712, Part No: 7D3-07765 REV R ITEM 34, Company: LAKE SHORE SYSTEMS, INC.
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M826T6578)