# DIBBS #SPE7L3-27-T-1993

DLA solicitation for three preformed back-up rings

**Posted:** November 06, 2026
**Respond By:** November 16, 2026
**Identifier:** SPE7L3-27-T-1993
**NAICS:** 339991, 326299

The Defense Logistics Agency is seeking three critical-application preformed back-up rings for a weapons-support requirement.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, Land Supplier Operations Vehicle Support; contact: Susan Diamond.
- **OEM/approved source:** **Defense Maritime Solutions, Inc.** (CAGE 0EYA6), identified with approved-source part numbers H73918-02/8/6 and US73918-02 H73918-02-8-6.
- **Product:** 3 preformed back-up rings, NSN 5330-01-508-6084 (also shown as 5330015086084).
- **Notable requirements:** Critical application item; asbestos is not permitted. Packaging must protect the rings from ultraviolet exposure and use a medium-duty, waterproof, greaseproof, opaque bag meeting MIL-DTL-117, Type II, Class C, Style 1.
- **Delivery and acceptance:** Single delivery of 3 each, required 168 days after order; FOB origin, with destination inspection and acceptance.

### Description

BACK-UP RING, PREFORMED (QTY: 3, NSN: 5330-01-508-6084, Purchase Request: 7019022311)
  Approved Sources:
  - CAGE: 0EYA6, Part No: H73918-02/8/6, Company: DEFENSE MARITIME SOLUTIONS, INC.
  - CAGE: 0EYA6, Part No: US73918-02 H73918-02-8-6, Company: DEFENSE MARITIME SOLUTIONS, INC.
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7L327T1993)