# DIBBS #SPE7L3-27-T-0684

DLA procurement for two Trelleborg preformed back-up rings

**Posted:** October 13, 2026
**Respond By:** October 23, 2026
**Identifier:** SPE7L3-27-T-0684
**NAICS:** 339991, 423840

The Defense Logistics Agency is seeking two Trelleborg back-up rings for a DLA Weapons Support requirement.
- Buyer: Defense Logistics Agency (DLA), DLA Weapons Support, Land Supplier Operations Vehicle Support; buyer contact: Susan Diamond.
- Requested item: 2 preformed packing back-up rings, NSN 5330-01-583-3867; manufacturer part number BUS7-0-M116-A-T99.
- OEM/source: Trelleborg Sealing Solutions US, Inc. is identified as the approved source.
- Delivery and handling: Delivery is required within 164 days after order, FOB Origin, to the DLA Distribution, DDSP New Cumberland Facility. Packaging and marking must follow MIL-STD-2073-1E and MIL-STD-129; the rings must not be bent.

### Description

BACK-UP RING, PREFORMED (QTY: 2, NSN: 5330-01-583-3867, Purchase Request: 7018675792)
  Approved Sources:
  - CAGE: 09257, Part No: BUS7-0-M116-A-T99, Company: TRELLEBORG SEALING SOLUTIONS US, IN
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7L327T0684)