Public Research Dataset

Nuclear Weapons Component Genealogy

A source-qualified public register for tracing historical nuclear-weapons components through design authority, production organization, facility, material, function, parent assembly, program, and surviving evidence.

Component Developer Facility Process Material Assembly / Program Record
17Public genealogy records
14Documented
2Indirectly documented
1Research lead
Evidence rule: A component identity does not establish its manufacturer, facility, material, shipment, or weapon destination. Every relationship must be supported independently. A missing link remains a missing link.

How to read the register

Genealogy without inference.

The public register preserves unresolved links instead of completing them from chronology, technical plausibility, or institutional proximity. “Documented” applies only to the proposition supported by the cited record; it does not automatically extend to every adjacent field.

Public scope

This page contains historical, publicly releasable research. It does not publish current classified design information, private claimant information, or the private Rosetta Master Evidence workbook.

Read the Evidence Status Key →

ComponentTypeFacility / SiteFunction / MaterialDestination / SystemEvidence StatusEvidence Supports / Limits
MC1707
CG-001
Coded switch / PAL componentNot established for PinellasElectromechanical switch / use-control
Not identified in current public evidence
B28; B43; B57; B61 (some configurations)
PAL / Category B use control
DOCUMENTEDWeapon application documented; Pinellas production not documented
MC1707 evidence matrix / public-source chain ↗
MC1707A
CG-002
Coded switch successorNot established for PinellasElectromechanical switch / use-control
Not identified in current public evidence
Weapon-system application unresolved in current Rosetta evidence
PAL / use control
DOCUMENTEDSuccessor/design-development record documented; downstream weapon applications need separate sourcing
MC1707 evidence matrix / public-source chain ↗
T1508
CG-003
DecoderNot established for PinellasElectronic/electromechanical decoding
Not resolved
Associated with MC1707 Category B PAL set
PAL / Category B use control
INDIRECTLY DOCUMENTEDSystem configuration supported; manufacturer/facility lineage unresolved
MC1707 evidence matrix / public-source chain ↗
T1509
CG-004
RecoderNot established for PinellasElectronic/electromechanical recoding
Not resolved
Associated with MC1707 Category B PAL set
PAL / Category B use control
INDIRECTLY DOCUMENTEDSystem configuration supported; manufacturer/facility lineage unresolved
MC1707 evidence matrix / public-source chain ↗
MC2893
CG-005
Pu-238 heat sourcePinellas RTG application documented; exact source transfer path unresolvedPuO2 ceramic shards; triple encapsulation
Pu-238-dominant plutonia
MC2730 RTG
Milliwatt RTG / nuclear weapon support
DOCUMENTEDHeat-source identity and MC2730 pairing documented; exact shipment genealogy still requires serial/transfer records
SC&A Pinellas review / cited source chain
MC2893A
CG-006
Pu-238 heat sourcePinellas RTG application documented; exact source transfer path unresolvedEncapsulated Pu-238 heat source
Pu-238-dominant plutonia
MC2730A RTG
Milliwatt RTG / nuclear weapon support
DOCUMENTEDModel pairing documented by SC&A review of primary sources; exact shipment genealogy unresolved
SC&A Pinellas review / cited source chain
MC3559
CG-007
Pu-238 heat sourcePinellas RTG application documented; exact source transfer path unresolvedEncapsulated Pu-238 heat source
Pu-238-dominant plutonia
MC3500 RTG
Milliwatt RTG / nuclear weapon support
DOCUMENTEDModel pairing documented by SC&A review of primary sources; exact shipment genealogy unresolved
SC&A Pinellas review / cited source chain
MC2730
CG-008
Miniature RTGPinellas PlantThermoelectric generator assembly
MC2893 Pu-238 heat source
Specific weapon destination unresolved without transfer/serial evidence
Milliwatt generator / weapon support
DOCUMENTEDPinellas RTG model and heat-source pairing supported; weapon-level destination remains unresolved
SC&A Pinellas review / cited source chain
MC2730A
CG-009
Miniature RTGPinellas PlantThermoelectric generator assembly
MC2893A Pu-238 heat source
Specific weapon destination unresolved without transfer/serial evidence
Milliwatt generator / weapon support
DOCUMENTEDPinellas RTG model and heat-source pairing supported; weapon-level destination remains unresolved
SC&A Pinellas review / cited source chain
MC3500
CG-010
Miniature RTGPinellas PlantThermoelectric generator assembly
MC3559 Pu-238 heat source
Specific weapon destination unresolved without transfer/serial evidence
Milliwatt generator / weapon support
DOCUMENTEDPinellas RTG model and heat-source pairing supported; weapon-level destination remains unresolved
SC&A Pinellas review / cited source chain
Neutron generator family
CG-011
Nuclear weapon component familyPinellas PlantPrecision component fabrication / assembly / testing
Tritium/deuterium-related technologies and other materials; exact model-specific content varies
Weapon-system destinations model-specific and not populated here
Nuclear weapon firing / initiation support
DOCUMENTEDPinellas original mission documented; genealogy must be resolved at model/MC-number level
MC1707 evidence matrix / public-source chain ↗
Lightning-arrester connector family
CG-012
Electrical connector / protection componentPinellas PlantElectrical component manufacture
Materials not yet resolved
Destination systems unresolved
Weapon electrical/support systems
DOCUMENTEDProduct family assigned to Pinellas; specific MC numbers and weapon destinations unresolved
MC1707 evidence matrix / public-source chain
Specialty capacitor family
CG-013
Electrical componentPinellas PlantCapacitor manufacture / testing
Materials not yet resolved
Destination systems unresolved
Weapon electrical/support systems
DOCUMENTEDProduct family assigned to Pinellas; specific MC numbers and weapon destinations unresolved
MC1707 evidence matrix / public-source chain
Vacuum switch family
CG-014
Electrical switching componentPinellas PlantSwitch manufacture / testing
Materials not yet resolved
Destination systems unresolved
Weapon electrical/support systems
DOCUMENTEDProduct family assigned to Pinellas; specific MC numbers and weapon destinations unresolved
MC1707 evidence matrix / public-source chain
Crystal resonator family
CG-015
Frequency-control componentPinellas PlantCrystal fabrication / resonator assembly / testing
Quartz and associated process materials; detailed genealogy unresolved
Destination systems unresolved
Timing / frequency-control systems
DOCUMENTEDProduct family assigned to Pinellas; model and destination genealogy unresolved
MC1707 evidence matrix / public-source chain
Battery family
CG-016
Power componentPinellas PlantBattery manufacture / assembly / testing
Chemistry/model-specific materials unresolved
Destination systems unresolved
Weapon power/support systems
DOCUMENTEDProduct family assigned to Pinellas; model and destination genealogy unresolved
MC1707 evidence matrix / public-source chain
Tritium/deuterium gas reservoir family
CG-017
Limited-life component familyPinellas relevance documented in classification/records context; specific production lineage requires component recordsReservoir fabrication / fill / testing / maintenance
Tritium; deuterium
Weapon-system destinations model-specific
Limited-life component / gas-transfer support
RESEARCH LEADDOE terminology establishes component class relevance; model/facility genealogy must be document-by-document
DOE classification-context source chain

Current research priorities

The public genealogy is intentionally incomplete. Priority gaps include direct production evidence for MC1707 at Pinellas, serial-level shipment records for the MC2893 heat-source family, weapon-system destinations for the MC2730-family RTGs, and model-level genealogies for Pinellas product families.