PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S12-5Heater,thermal Release

Joslyn Clark Controls, Llc · NSN 5999-00-953-1716 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-953-1716 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-953-1716. Primary manufacturer part number: S12-5.
Features
  • Heater,thermal Release — FSC 5999
  • Voltage in Volts and Current Type: 440.0 AC
  • Voltage in Volts and Current Type: 440.0 AC
  • 2 verified cross-references
  • Primary manufacturer: Joslyn Clark Controls, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-00-953-1716, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Joslyn Clark Controls, Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-953-1716
Primary Part NumberS12-5
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerJoslyn Clark Controls, Llc
StatusACTIVE
Voltage in Volts and Current Type440.0 AC
Voltage in Volts and Current Type440.0 AC
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5998-00-460-0448 (6723-00386)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 10
5998-00-460-04486723-00386 SUCCESSOR
Circuit Card Assembly
Bae Systems (operations) Limited
5340-00-329-4419S125 INTERCHANGEABLE
Button,plug
Egs Electrical Group Appleton Div
5330-00-345-2265S12-5 INTERCHANGEABLE
Retainer,packing
Arkwin Industries, Inc. Dba Arkwin Industries Inc
5930-00-412-1056 INTERCHANGEABLE
Switch,knife
5930-00-486-7052 INTERCHANGEABLE
Adapter,switch Actuator
5305-00-576-698760X3210 INTERCHANGEABLE
Screw,cap,hexagon Head
Napco International Llc Dba Napco International Inc
5930-00-661-0693S1-25 INTERCHANGEABLE
Switch,sensitive
Safran Power Usa, Llc
4820-01-156-9859S-125 INTERCHANGEABLE
Valve,shuttle
Humphrey Products Co
3460-01-355-6193S-125 INTERCHANGEABLE
Sleeve,expansion Mandrel
Sunnen Products Co
4730-01-526-6956S-125 INTERCHANGEABLE
Elbow,hose
Uni Tek Mfg Co Inc
Cross-Reference Index
Part NumberManufacturer
S12-5 Joslyn Clark Controls, Llc (USA)
S12-5 Challenger Electrical Equipment Corp Industrial Products Operation (USA)
Related Parts
SUCCESSOR 5998-00-460-0448 Circuit Card Assembly · 6723-00386
5340-00-329-4419INTERCHANGEABLE
BUTTON,PLUG
S125
5330-00-345-2265INTERCHANGEABLE
RETAINER,PACKING
S12-5
5930-00-412-1056INTERCHANGEABLE
SWITCH,KNIFE
5930-00-486-7052INTERCHANGEABLE
ADAPTER,SWITCH ACTUATOR
5305-00-576-6987INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
60X3210
5930-00-661-0693INTERCHANGEABLE
SWITCH,SENSITIVE
S1-25
4820-01-156-9859INTERCHANGEABLE
VALVE,SHUTTLE
S-125
3460-01-355-6193INTERCHANGEABLE
SLEEVE,EXPANSION MANDREL
S-125
4730-01-526-6956INTERCHANGEABLE
ELBOW,HOSE
S-125

Frequently Asked Questions

What is NSN 5999-00-953-1716?

NSN 5999-00-953-1716 is a Heater,thermal Release, manufactured by Joslyn Clark Controls, Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-953-1716?

NSN 5999-00-953-1716 has 2 cross-referenced part numbers: S12-5 (Joslyn Clark Controls, Llc), S12-5 (Challenger Electrical Equipment Corp Industrial Products Operation).

What NSN replaces 5999-00-953-1716?

There are 10 known substitutes for 5999-00-953-1716: 5998-00-460-0448, 5340-00-329-4419, 5330-00-345-2265 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S12-5?

Key specifications for S12-5: Voltage in Volts and Current Type: 440.0 AC; Voltage in Volts and Current Type: 440.0 AC. 2 total characteristics are documented in the Federal Logistics Information System.

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