# DIBBS #SPE7M4-26-T-453N

DLA solicitation for three source-restricted metal tube assemblies

**Posted:** September 29, 2026
**Respond By:** October 09, 2026
**Identifier:** SPE7M4-26-T-453N
**NAICS:** 336413, 332420

DLA Land and Maritime is seeking three safety-critical metal tube assemblies for an Air Force application.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Land and Maritime, Fluid Handling Division; contracting contact: Rory O'Reilly.
- **Requested item:** Three metal tube assemblies, approved-source part number **646883**, NSN **4710-00-083-9350** (purchase request 7018563952).
- **Named approved-source manufacturers:** **RTX Corporation** (CAGE 52661 and 77445) and **Tomco Machining, Inc.** (CAGE 3BLQ5). The item is source-restricted and requires government engineering source approval.
- **Notable requirements:** Air Force-designated Critical Safety Item; origin inspection and acceptance; manufacturers must meet SAE AS9100 or an equivalent quality-management standard.
- **Delivery:** Required within 256 days after order, FOB origin. This is a supply procurement, not a services requirement.

### Description

TUBE ASSEMBLY, METAL (QTY: 3, NSN: 4710-00-083-9350, Purchase Request: 7018563952)
  Approved Sources:
  - CAGE: 3BLQ5, Part No: 646883, Company: TOMCO MACHINING, INC.
  - CAGE: 52661, Part No: 646883, Company: RTX CORPORATION
  - CAGE: 77445, Part No: 646883, Company: RTX CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M426T453N)