---
title: "707250450 PEDT/0039 Submarine Mechanical and Secondary Steam Equipment Support (SMASSES)"
ocid: "ocds-h6vhtk-03ddc1"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03ddc1"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-03ddc1.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-03ddc1.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "MINISTRY OF DEFENCE"
published: "2025-06-12"
---

# 707250450 PEDT/0039 Submarine Mechanical and Secondary Steam Equipment Support (SMASSES)

Buyer: MINISTRY OF DEFENCE  
Current stage: Award  
OCID: ocds-h6vhtk-03ddc1

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## Summary

The Ministry of Defence has initiated a procurement process for the Submarine Mechanical and Secondary Steam Equipment Support (SMASSES), a project focusing on goods related to submarines. The tender process has reached the award stage as of 11 June 2025, with the contract awarded to Scott Aerospace Ltd. The main location for the delivery of goods is in the UK, specifically to Portsmouth or Faslane, indicating a strategic geographical focus. The procurement takes place under a selective method, following a restricted procedure, showing an emphasis on ensuring that only qualified bidders are considered. The legal basis for this procurement follows European directives, ensuring compliance with broader regulatory frameworks. The total contract value, excluding VAT, is stated as £38,088,503.33 for a term that could extend to five years if options are exercised, starting from 9 April 2025.

This tender represents significant opportunities for businesses engaged in the supply and services of submarine mechanical and secondary steam propulsion equipment. Companies with expertise in spare parts procurement, repairs, obsolescence and quality management, and technical services would find this contract well-suited for growth. Particularly, businesses possessing a history of defence contract fulfilment or those capable of participating within framework agreements can leverage this contract to enhance their market stature. The presence of options for extending the contract period reinforces prospects for long-term engagement and revenue stability for the successful bidder. With strict criteria focusing on technical and social value aspects, businesses that excel in these areas are encouraged to pursue such tenders.

## Notice

The Contract is for the supply of spares and repairs in support of Submarine Mechanical and Secondary Steam Propulsion Equipment. The Contract includes provision of: * Procurement of Spares and Repairs * Obsolescence Management * Quality Management * Project Documentation (e.g. Quality Management Plan) * Risk Management * Safety and Environmental Management * Performance Monitoring and Reporting * Helpdesk during business hours The Contract shall allow for the provision of spares and repairs of equipment within scope of Submarine Mechanical and Secondary Steam Propulsion which shall include but not be limited to: - Submarine Mechanical System and Ancillary Equipment and components which consists of both first level and non-first level equipment - Secondary Steam Propulsion Equipment comprising the following Master equipments: Main Steam System Valves, Auxiliary Steam System Valves, Steam Drains & Gland Steam System Valves, Main Steam Turbines, Turbo Generators (Mechanical) and Steam & Feed Ancillary The Contract is for a duration of 3 years however the Contract includes two irrevocable one year Option periods to be taken entirely at the Authority's discretion and subject to continuation of requirement and satisfactory performance resulting in a potential total Contract duration of three plus one plus one (3+1+1) years.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/032108-2025 |
| Notice type | Tender Notice |
| Procurement type | Framework |
| Procurement category | Goods |
| Procurement method | Selective |
| Procurement method details | Restricted |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 12 Jun 2025 |
| Submission deadline | 31 Jul 2023 |
| Future notice date | Not specified |
| Award date | 8 Apr 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £114,265,509 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | MINISTRY OF DEFENCE |
| Locality | BRISTOL |
| Post town | Bristol |
| Postcode | BS34 8JH |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK5 West of England |
| ITL 3 | TLK52 Bath & North East Somerset and South Gloucestershire |
| Local authority | South Gloucestershire |
| Electoral ward | Stoke Park & Cheswick |
| Westminster constituency | Filton and Bradley Stoke |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SCOTT AEROSPACE |

## CPV Codes

### Divisions

- 35 - Security, fire-fighting, police and defence equipment

### Codes

- 35512000 - Submarines
- 35512100 - Strategic submarine nuclear fuelled
- 35512200 - Attack submarine nuclear fuelled
- 35520000 - Parts for warships
- 35521000 - Hull and mechanical spare parts for warships

## Release History

- 12 Jun 2025 at 20:22 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/032108-2025
- 11 Jun 2025 at 15:55 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/031674-2025
- 22 Jul 2023 at 08:19 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/021209-2023
- 30 Jun 2023 at 09:30 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/018631-2023

## Documents

- https://contracts.mod.uk/esop/guest/go/opportunity/detail?opportunityId=56346

## Notice URLs

- https://www.gov.uk/government/organisations/ministry-of-defence
- https://www.scottaero.co.uk/

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03ddc1. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-03ddc1.json.