# DIBBS #SPE7M4-26-T-453C

DLA solicitation for 329 critical-use O-rings

**Posted:** September 29, 2026
**Respond By:** October 09, 2026
**Identifier:** SPE7M4-26-T-453C
**NAICS:** 339991, 423840

The Defense Logistics Agency is seeking 329 critical-use O-rings for its Fluid Handling Division.
- Buyer: Defense Logistics Agency (DLA), DLA Land and Maritime, Fluid Handling Division; buyer contact: Blake Tushar.
- Product: 329 O-rings, NSN 5331-00-800-8390. **RTX Corporation** is identified as an approved critical-application source, part number 385992, under CAGE codes 52661 and 77445.
- Notable requirements: The item is designated a critical safety item and critical application item. The solicitation requires SAE AS9100 or equivalent quality management, and opaque protective packaging to guard against UV exposure.
- Delivery and acceptance: Delivery is required within 256 days after order; FOB origin, with inspection and acceptance at origin.

### Description

O-RING (QTY: 329, NSN: 5331-00-800-8390, Purchase Request: 7018562794)
  Approved Sources:
  - CAGE: 52661, Part No: 385992, Company: RTX CORPORATION
  - CAGE: 77445, Part No: 385992, Company: RTX CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M426T453C)