Dover AFB - Hangar Door Plug
DEPT OF DEFENSE
Notice type
Sources Sought
Solicitation #
FA449726Q0006
NAICS
336413
PSC
1730
Set-aside
Total Small Business Set-Aside (FAR 19.5)
Posted
June 10, 2026
Response due
June 22, 2026
Place of performance
Dover AFB, DE
What this opportunity is
The Department of Defense is seeking a custom-fitted inflatable hangar door plug system for Dover Air Force Base to seal gaps around a C-17 fuselage in a C-5 sized hangar. This opportunity is set aside for total small businesses under NAICS 336413. As this is a Sources Sought notice, it is primarily for market research, meaning interested parties should submit a Capability Statement rather than bids or proposals at this time.
Analysis by Mindy, grounded in the SAM.gov notice.
Description
Statement of Work
714 North Hangar Door Plug
Bldg 714 736 AMXS Dover AFB
10 December 2025
Characteristic Description
1. Purpose &
Function
The purpose of this procurement is to acquire an inflatable hangar door plug system for
Hangar 714 North. The hangar's current aperture doors are fitted for C-5 aircraft, creating
significant air gaps when a C-17 is hangared. This condition prevents C-17 maintenance
operations during winter months due to the inability to maintain a climate-controlled
environment and the risk of pipes freezing. The required plug must create an effective
thermal and weather seal around the fuselage of a C-17 to resolve this issue, enabling
year-round maintenance capability and preventing damage to hangar infrastructure.
2. Installation &
Compatibility
- The system must be installed on the existing hangar doors of Building 714 North using a
bolt-on, corrosion-resistant aluminum rail system (Keder rail). - The plug's edges shall
feature a reinforced Keder seam for secure retention in the rail. - Installation of the rail
must not interfere with normal hangar door operation. - Installation shall require a crew
of no more than two (2) people and require no specialized training.
3. Materials &
Construction
- Fabric: The inflatable body shall be constructed from a high-strength, lightweight, fire-
retardant (FR) technical fabric. The material must be resistant to puncture, UV
degradation, and common aviation fluids including fuel, oil, and hydraulicl. - Rails: The
Keder rails shall be made of high-grade, corrosion-resistant aluminum.
4. Performance - The inflation system shall fully inflate the plug in under three (3) minutes. - The plug shall
operate effectively in a temperature range of -22°F to 158°F (-30°C to 70°C). - The fully
installed system must withstand wind loads of up to 50 MPH without damage or deflation.
5. Portability &
Storage
- The entire system (plug and accessories) when packaged for storage must not exceed a
weight of 85 kg (approx. 187 lbs). - The dimensions of the stored package shall be
approximately 100cm x 80cm x 70cm.
6. Safety - Fabric must meet or exceed NFPA 701 standards for fire retardancy. - The inflation
blower must be electrically safe (110V AC), guarded, and include a pressure relief valve to
prevent over-inflation.
7. Warranty - The contractor shall provide a minimum 12-month warranty covering all parts and labor
for material defects and workmanship.
8. Kit & Delivery The delivered system must be a complete kit, including: - Inflatable Door Plug - Electric
Blower (110V AC) - All required Keder rails and mounting hardware - A durable storage
bag - An on-site repair kit for minor punctures - Laminated, weatherproof installation and
re-packing instructions.
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Source: SAM.gov, as posted. Verify the current solicitation before responding.
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