# DIBBS #SPE7M1-27-T-0544

DLA solicitation for five Steward Machine pump pistons

**Posted:** October 13, 2026
**Respond By:** October 23, 2026
**Identifier:** SPE7M1-27-T-0544
**NAICS:** 333914, 423830

DLA Weapons Support is seeking five critical-application pump pistons for its Maritime Supply Chain.
- Buyer: Defense Logistics Agency (DLA), DLA Weapons Support, Maritime Supply Chain; point of contact: Michael Reese.
- Product: Five pump pistons, NSN 4320-00-851-7953, part number 644-406.
- OEM: Steward Machine Co Inc (CAGE 9E328), identified as the manufacturer and approved source.
- Requirements: Delivery within 164 days after order, FOB Origin, with inspection and acceptance at destination.

### Description

PISTON, PUMP (QTY: 5, NSN: 4320-00-851-7953, Purchase Request: 7018672318)
  Approved Sources:
  - CAGE: 9E328, Part No: 644-406, Company: STEWARD MACHINE CO INC
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M127T0544)