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PROCUREMENT OPPORTUNITY

PDM4 Obsolescence Recovery

Defence Equipment and Support · Pipeline notice on Find a Tender

Tender information last checkedLast checked 30 Sept 2026, 04:17.

Opportunity overview

There is a requirement for the Maritime Command & Control, Targeting, Navigation, and Communications Team (C2TNC) within Sense, Decide and Communicate (SDC) to provide obsolescence recovery for the Platform Data Management System 4 (PDM 4) fitted to Vanguard Class Submarines. PDM In-Service Support is currently provided through contract CSA/3049. PDM4 has been in operation since the early 1990s with an expected in-service period until 2015. The original Out of Service Dates (OSD) has been extended by up to 100%, and no provision of additional stores was made when the OSDs were extended. As a result, work is now required to address the high-risk obsolescence issues, where there are low stores and items which require regular Survey and Repair. Failure to do this will adversely impact the operational capability of the CASD Vanguard Class Submarines. Currently the two main areas of concern are (1) Power Supply Units (PSUs) of which there are three variants and (2) PEC SIOs. Both items are critical to the safe operation of PDM4.

Classification

  • CPV34933000 — Navigation equipment

Lots

  • Lot 1Value not stated

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
PDM4 Obsolescence Recovery
Status
planned
Above Threshold
Yes
Main Procurement Category
goods

Legal basis

Id
2023/54
Scheme
UKPGA

Communication

Future Notice Date
31 Jul 2025, 23:59

Lots and requirements

Entry 1
Id
1
Status
planned

Suitability

Sme
Yes

Contract period

Ends
30 Nov 2027, 23:59
Starts
30 Nov 2025, 00:00

Items and delivery

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
34933000
Scheme
CPV
Description
Navigation equipment

Planning and budget

Documents

Entry 1
Id
032174-2025
Format
text/html
Notice Type
UK1
Description
Pipeline notice on Find a Tender
Document Type
plannedProcurementNotice
Published
13 Jun 2025, 10:39
Entry 2
Id
034705-2025
Format
text/html
Notice Type
UK1
Description
Pipeline notice on Find a Tender
Document Type
plannedProcurementNotice
Published
24 Jun 2025, 12:33

Buyer, suppliers and contacts

Organisation 1
Id
GB-PPON-PVRL-5831-GLMM
Name
Defence Equipment and Support

Roles

buyer

Address

Region
UKK12
Country
GB
Locality
Bristol
Postal Code
BS34 8JH
Country Name
United Kingdom
Street Address
MOD Abbey Wood

Details

Classifications

Entry 1
Id
publicAuthorityCentralGovernment
Scheme
UK_CA_TYPE
Description
Public authority - central government

Identifier

Id
PVRL-5831-GLMM
Scheme
GB-PPON

Contact

Recorded locations

  • Buyer location · Bristol · UKK12 · BS34 8JH · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. ocds-h6vhtk-054840-2025-06-24T12:33:11+01:00Pipeline notice on Find a Tender ·