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Tenfell
Awarded contract
Published 25 Sep 2026

Chesterfield Gas Cylinders

Defence Equipment and Support · South West

Key facts

Contract value
£1,997,450
Contract starts
30 Oct 2027
Contract ends
30 Apr 2028
Procedure
Direct award
Buyer type
Central government

Awarded to

SupplierValue
Chesterfield Special Cylinders Ltd£1,997,450

Description

CSC is the sole economic operator capable of delivering PDS activities due to its role as the approved Design Organisation (DO) and OEM, holding the design licence, technical drawings, product knowledge, and in-service reliability data for the equipment. Any alternative supplier would require licences from both CSC and the air system OEMs, incur significant additional costs, and need to demonstrate suitability as a DO. An option to separate spare parts procurement from the PDS function was considered and rejected by the MoD Engineering Authority due to significant airworthiness, safety, and interoperability risks. The air system Design Organisation specifies exact part numbers that are manufactured exclusively by CSC to approved drawings and processes, making CSC the only supplier capable of providing compliant spares. CSC also holds the specialist tooling required to manufacture these components and ensure configuration and quality control. Introducing an alternative supplier would require costly and complex aircraft design revalidation, part requalification, and approval activities, with no guarantee of acceptance by the air system DO. This would create unacceptable safety and operational risks, including potential aircraft grounding, while imposing disproportionate cost and technical burden on the Authority.

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