# DIBBS #SPE7M4-27-T-1037

DLA request for 32 NAS521-36-11 air duct hoses

**Posted:** October 13, 2026
**Respond By:** October 23, 2026
**Identifier:** SPE7M4-27-T-1037
**NAICS:** 326220

DLA is requesting 32 critical-application air duct hoses for its Weapons Support, Fluid Handling Division.
- Buyer: Defense Logistics Agency (DLA), DLA Weapons Support, Fluid Handling Division; buyer contact named in the attachment: Blake Tushar.
- Product: 32 air duct hoses, NSN 4720-01-347-2664, part number NAS521-36-11.
- Specification: Flexible, low-pressure air-line coupling meeting NAS521, Revision 3; identified as a critical application item.
- Delivery and handling: Delivery is required 10 days after order; FOB origin, with inspection and acceptance at destination. Packaging must follow ASTM D3951 and marking must follow MIL-STD-129.
- OEMs and vendors: No manufacturer, OEM, or supplier is identified in the available materials. NAS521 is the referenced standard, not a named supplier.

### Description

HOSE, AIR DUCT (QTY: 32, NSN: 4720-01-347-2664, Purchase Request: 7016692055)

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE7M427T1037)