# DIBBS #SPE7M1-27-T-2216

DLA procurement of 33 critical-application piston ring sets

**Posted:** November 06, 2026
**Respond By:** November 16, 2026
**Identifier:** SPE7M1-27-T-2216
**NAICS:** 333613

DLA Weapons Support is seeking 33 piston ring sets for a maritime supply requirement.
- **Buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, Maritime Supply Chain; buyer contact: Michael Reese.
- **Product:** 33 piston ring sets, NSN 4310-01-127-6949.
- **Named OEMs and approved sources:**
  - **Curtiss-Wright Electro-Mechanical Corp.** — part number 1W139489 (CAGE 8FGX3).
  - **Kaydon Ring & Seal Inc.** — part number B4775-80 (CAGE 75370).
- **Notable requirements:** The item is designated a critical application item. Delivery is FOB origin, 168 days after order, with destination inspection and acceptance.
- **Set-aside:** Small businesses.

### Description

RING SET, PISTON (QTY: 33, NSN: 4310-01-127-6949, Purchase Request: 7019024992)
  Approved Sources:
  - CAGE: 75370, Part No: B4775-80, Company: KAYDON RING & SEAL INC
  - CAGE: 8FGX3, Part No: 1W139489, Company: CURTISS-WRIGHT ELECTRO-MECHANICAL C
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M127T2216)