# DIBBS #SPE4A5-26-T-459A

DLA Aviation Solicits 45 Aerosonic Diaphragm Assemblies (NSN 6610-00-601-5021)

**Posted:** September 21, 2026
**Respond By:** September 28, 2026
**Identifier:** SPE4A5-26-T-459A
**NAICS:** 336413

The Defense Logistics Agency (DLA) Aviation is seeking bids for the supply of Diaphragm Assemblies for aircraft instrumentation.
- Government Buyer:
  - Defense Logistics Agency (DLA)
  - Sub-agency: DLA Aviation, ASC Supplier Oper OEM Division
- OEMs and Vendors:
  - Aerosonic LLC (approved OEM)
- Products Requested:
  - Diaphragm Assembly
    - NSN: 6610-00-601-5021
    - Aerosonic LLC Part Number: 21300
    - Quantity: 45 units
- Notable Requirements:
  - Delivery required within 169 days from contract award
  - Ship to DLA Distribution Depot Hill, Hill AFB, UT
  - Packaging must comply with ASTM D3951 and MIL-STD-129
  - Compliance with DFARS and FAR clauses, including cybersecurity requirements
  - FOB Origin shipping

### Description

DIAPHRAGM ASSY (QTY: 45, NSN: 6610-00-601-5021, Purchase Request: 7018413441)
  Approved Sources:
  - CAGE: 98810, Part No: 21300, Company: AEROSONIC LLC
 

[View original listing](https://www.dibbs.bsm.dla.mil/rfq/rfqrec.aspx?sn=SPE4A526T459A)
