# DIBBS #SPE7M3-27-T-0254

DLA procurement for 121 Sikorsky helicopter tube-to-boss adapters

**Posted:** October 13, 2026
**Respond By:** October 23, 2026
**Identifier:** SPE7M3-27-T-0254
**NAICS:** 336413

DLA is seeking 121 aircraft-use straight tube-to-boss adapters for Sikorsky CH-54A/CH-54B helicopters.
- **Government buyer:** Defense Logistics Agency (DLA), DLA Weapons Support, Fluid Handling Division; buyer contact: William Cain.
- **OEM / application:** **Sikorsky** is identified as the helicopter OEM whose CH-54A and CH-54B aircraft use the adapter. The adapter manufacturer is not identified.
- **Requested item:** 121 straight tube-to-boss adapters, part number AS5173-1612, NSN 4730-00-063-6454.
- **Technical requirements:** Must meet SAE AS5173E, Revision E, and have Class 3 threads. PRI QML/QPL accreditation is required for manufacturers or assemblers, as applicable.
- **Delivery and acceptance:** Delivery is required within 164 days; FOB Origin, with destination inspection and acceptance.
- **Services:** None specified.

### Description

ADAPTER, STRAIGHT, TUBE (QTY: 121, NSN: 4730-00-063-6454, Purchase Request: 7018681875)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M327T0254)