# DIBBS #SPE7M4-27-T-2323

DLA solicitation for TF33 fuel drain tube assemblies and first-article testing

**Posted:** November 06, 2026
**Respond By:** November 16, 2026
**Identifier:** SPE7M4-27-T-2323
**NAICS:** 336412

The Defense Logistics Agency is soliciting source-restricted fuel drain tube assemblies for the TF33 turbofan engine.
- Buyer: Defense Logistics Agency (DLA), DLA Weapons Support, Fluid Handling Division; contact listed as Blake Tushar.
- Requested item: 9 fuel drain tube assemblies, NSN 4710-00-399-8346, approved-source part number 733081.
- **Named approved sources/OEMs:** RTX Corporation and Tomco Machining, Inc. The item is source-restricted and requires Government engineering source approval.
- First-article requirement: 3 additional units for testing, separate from the 9 production units. First-article units are due within 180 days of award; the Government may take up to 180 days after receipt to provide its approval decision.
- The assembly is identified as a critical application item. The notice text provides no further technical specifications.

### Description

GOVERNMENT FIRST ARTIC (QTY: Qty - See Solicitation, NSN: 0001S00000052, Purchase Request: 7019023402)
TUBE ASSEMBLY, FUEL DRA (QTY: 9, NSN: 4710-00-399-8346 Mil-Spec, Purchase Request: 7019023402)
  Approved Sources:
  - CAGE: 3BLQ5, Part No: 733081, Company: TOMCO MACHINING, INC.
  - CAGE: 52661, Part No: 733081, Company: RTX CORPORATION
  - CAGE: 77445, Part No: 733081, Company: RTX CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M427T2323)