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715862521 - Hydraulics Supply and Support (HSS) - UK2

Submarine Delivery Agency · Central government

In brief

Submarine Delivery Agency has announced plans to buy this contract. This is an early notice: there is nothing to bid on yet, but it tells you a tender may follow.

The estimated value is £45,833,333 excluding VAT.

The contract runs for 5 years, up to 10 years with extensions, starting 15 March 2028.

The buyer says it is suitable for small and medium-sized businesses.

Built from the notice's own fields. Always check the official notice before you bid.

Can I win this?

Competition

Typical: a median of 3 bids per contract for this buyer (from 8 awards in the last 12 months).

What the notice says

The HSS requirement supports hydraulic equipment fitted across Royal Navy submarine and surface ship platforms. These systems perform mission-critical and safety-critical functions supporting platform availability, operational effectiveness and Continuous At Sea Deterrence (CASD). The requirement includes support to: (a) Hydraulic system Valves, Accumulators and Filters. (b) Hydraulic system mechanical support services e.g. Mib Winch. (c) Hydraulic system miscellaneous mechanical spares e.g. gaskets, O-rings. Support is required for both general hydraulic equipment and designated first-level hydraulic equipment across the in-service fleet. Interested parties are to note: • This Preliminary Market Engagement Notice is invite suppliers to take part in market engagement for this potential future requirement and is not a formal request for Expressions of Interest (EOI) nor a commitment to run a procurement exercise. • The publication date of the UK 4 Tender Notice, Contract start date and Contract end date are an estimate and is still subject to change.

How to bid

  1. Read the full notice on Find a Tender, including any tender documents it links to.
  2. Register your organisation on the Central Digital Platform (through Find a Tender) if you have not already. Suppliers need to be registered to take part in procurements under the Procurement Act 2023.
  3. Follow the submission instructions in the notice; it does not name an e-tendering portal.

Timeline

  1. Pipeline notice · UK1, notice 051506-2026
  2. Preliminary market engagement notice · UK2, notice 071845-2026

About the buyer

Procurements

31

Awards

15

Suppliers it has used most

From notice 051506-2026 on Find a Tender, first published 1 June 2026, last updated 29 July 2026. We last checked for changes on 28 September 2026.