# DIBBS #SPE4A7-26-T-741E

DLA Aviation Requests Radius Blocks, NSN 5365-01-290-3070, from Rotair and Sikorsky

**Posted:** September 16, 2026
**Respond By:** September 23, 2026
**Identifier:** SPE4A7-26-T-741E
**NAICS:** 336413

The Defense Logistics Agency (DLA) Aviation, ASC Supplier Operations AE and AF Division is seeking to procure Radius Blocks for military applications.
- Government Buyer:
  - Defense Logistics Agency (DLA) Aviation, ASC Supplier Operations AE and AF Division
- OEMs (Original Equipment Manufacturers):
  - Rotair Aerospace Corp (CAGE 54878)
  - Sikorsky Aircraft Corporation (CAGE 78286)
- Vendors/Approved Sources:
  - Rotair Aerospace Corp
  - Sikorsky Aircraft Corporation
- Products Requested:
  - Radius Block
    - National Stock Number (NSN): 5365-01-290-3070
    - Part Number: 70307-23600-104
    - Quantity: 16 units
- Unique/Notable Requirements:
  - Strict compliance with domestic sourcing laws
  - Packaging must meet ASTM D3951 and MIL-STD-129 standards
  - Destination inspection required
  - Delivery required within 171 days from award
  - Fast Award solicitation
- No technical documents or attachments provided

### Description

RADIUS BLOCK (QTY: 16, NSN: 5365-01-290-3070, Purchase Request: 7018342749)
  Approved Sources:
  - CAGE: 54878, Part No: 70307-23600-104, Company: ROTAIR AEROSPACE CORP
  - CAGE: 78286, Part No: 70307-23600-104, Company: SIKORSKY AIRCRAFT CORPORATION
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A726T741E)