PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

645-2Relay,solid State

Teledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc · NSN 5945-01-309-6865 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-309-6865 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-309-6865. Primary manufacturer part number: 645-2.
Features
  • Relay,solid State — FSC 5945
  • 2 verified cross-references
  • Primary manufacturer: Teledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,solid State, cataloged under National Stock Number 5945-01-309-6865, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Teledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-01-309-6865
Primary Part Number645-2
Item NameRelay,solid State
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTeledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5995-00-060-84466452 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Spencer Industries Inc
5930-00-224-56615386 INTERCHANGEABLE
Switch,push-Pull
Camdec Corp
5310-00-237-9907GG164 INTERCHANGEABLE
Washer,flat
Prestolite Electric Inc
4720-00-241-443526241 INTERCHANGEABLE
Hose,nonmetallic
Gates Corporation
4730-00-277-6191122323R91 INTERCHANGEABLE
Clamp,hose
Komatsu America Corp.
4930-00-322-591106A14A18L1BC INTERCHANGEABLE
Regulator Assembly
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
4310-00-375-25431648-49 INTERCHANGEABLE
Ring Set,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
3040-00-388-66866452 INTERCHANGEABLE
Shaft,straight
King Engineering Corporation Dba King-Gage Systems
5330-01-053-9719 INTERCHANGEABLE
Gasket
5340-01-365-36346452 INTERCHANGEABLE
Bracket,angle
Carlisle & Finch Co
Cross-Reference Index
Part NumberManufacturer
645-2 PRIMARY Teledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc (USA)
203A05A2A C P Clare Corporation (USA)
Related Parts
5995-00-060-8446INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
6452
5930-00-224-5661INTERCHANGEABLE
SWITCH,PUSH-PULL
5386
5310-00-237-9907INTERCHANGEABLE
WASHER,FLAT
GG164
4720-00-241-4435INTERCHANGEABLE
HOSE,NONMETALLIC
26241
4730-00-277-6191INTERCHANGEABLE
CLAMP,HOSE
122323R91
4930-00-322-5911INTERCHANGEABLE
REGULATOR ASSEMBLY
06A14A18L1BC
4310-00-375-2543INTERCHANGEABLE
RING SET,PISTON
1648-49
3040-00-388-6686INTERCHANGEABLE
SHAFT,STRAIGHT
6452
5330-01-053-9719INTERCHANGEABLE
GASKET
5340-01-365-3634INTERCHANGEABLE
BRACKET,ANGLE
6452
6515-01-562-1271INTERCHANGEABLE
BIT,DRILL,SURGICAL
14BA30

Frequently Asked Questions

What is NSN 5945-01-309-6865?

NSN 5945-01-309-6865 is a Relay,solid State, manufactured by Teledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-01-309-6865?

NSN 5945-01-309-6865 has 2 cross-referenced part numbers: 645-2 (Teledyne Solid State Products Div Teledyne Industries Sub of Teledyne Inc), 203A05A2A (C P Clare Corporation).

What NSN replaces 5945-01-309-6865?

There are 11 known substitutes for 5945-01-309-6865: 5995-00-060-8446, 5930-00-224-5661, 5310-00-237-9907 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 645-2?

Key specifications for 645-2: End Item Identification: FBM SUPPORT; Special Features: SPSTNO; 4 PIN TERMINALS; 0.850 IN. LG; 0.250 IN. W; 0.165 IN. H; I/P VOLTAGE 3.8 VDC MIN AND 32.0 VDC; O/P VOLTAGE 250.0 VRMS VDC. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-01-309-6865 still in active supply?

NSN 5945-01-309-6865 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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