# DIBBS #SPE7M3-27-T-0513

DLA Request for 581 NAS593-12 Tube Coupling Nuts

**Posted:** October 19, 2026
**Respond By:** October 29, 2026
**Identifier:** SPE7M3-27-T-0513
**NAICS:** 332722

The Defense Logistics Agency is seeking 581 aluminum tube coupling nuts for its Fluid Handling Division.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, Fluid Handling Division; buyer contact listed as William Cain.
- **Item requested:** 581 tube coupling nuts, NSN 4730-00-618-8509; part piece number NAS593-12.
- **Technical requirements:** Aluminum alloy, for 3/4-inch outside-diameter tubing, with 1-1/16-12 UNJ-3B threads, conforming to NAS593-12.
- **Delivery and acceptance:** Single delivery within 158 days after order; FOB Origin, with inspection and acceptance at origin. Destination is DLA Distribution Cherry Point.
- **OEMs and vendors:** No OEM or vendor is identified in the provided material.

### Description

NUT, TUBE COUPLING (QTY: 581, NSN: 4730-00-618-8509, Purchase Request: 7018671691)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M327T0513)