PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820-4530326 PIECE 12Adapter,thermocouple

Naval Sea Systems Command · NSN 6685-01-090-2585 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-090-2585 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-090-2585. Primary manufacturer part number: 820-4530326 PIECE 12.
Features
  • Adapter,thermocouple — FSC 6685
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY PAC TEXT
  • General Characteristics Item Description: 17/32 IN. SURFACE CLEARANCE; 1/8 IN. NPT THREAD SIZE; SPECIAL REQUIREMENTS FOR NUCLEAR PROPULSION PLANT EQUIPMENT CONTAINED IN INDIVIDUAL REPAIR PARTS ORDERING DATA INSTRUMENTATION CONTROL NO. MH7301A LINE NO. 0013 IN
  • 2 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,thermocouple, cataloged under National Stock Number 6685-01-090-2585, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Naval Sea Systems Command. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-090-2585
Primary Part Number820-4530326 PIECE 12
Item NameAdapter,thermocouple
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY PAC TEXT
General Characteristics Item Description17/32 IN. SURFACE CLEARANCE; 1/8 IN. NPT THREAD SIZE; SPECIAL REQUIREMENTS FOR NUCLEAR PROPULSION PLANT EQUIPMENT CONTAINED IN INDIVIDUAL REPAIR PARTS ORDERING DATA INSTRUMENTATION CONTROL NO. MH7301A LINE NO. 0013 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5307-00-437-4763 INTERCHANGEABLE
Stud,receiver,cartr
6145-00-643-0653 INTERCHANGEABLE
Wire,electrical
5310-00-687-757818551 INTERCHANGEABLE
Nut,plain,rectangular
Cec Vibration Products, Llc Dba Cec Vibrations Products
2805-00-776-815311-415 INTERCHANGEABLE
Valve,poppet,engine
Thermo King Corporation Dba Phoenix Global Distirbution.
5306-01-214-013418551 INTERCHANGEABLE
Bolt
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
4130-01-459-2414800-48TP480V INTERCHANGEABLE
Vacu-Disc
Dcm Clean Air Products, Inc.
5995-01-613-634218551 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Silver Eagle Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
820-4530326 PIECE 12 Naval Sea Systems Command (USA)
1855-1 Thermo Electric Company Inc. Dba Thermo Electric Company (USA)
Related Parts
5307-00-437-4763INTERCHANGEABLE
STUD,RECEIVER,CARTR
6145-00-643-0653INTERCHANGEABLE
WIRE,ELECTRICAL
5310-00-687-7578INTERCHANGEABLE
NUT,PLAIN,RECTANGULAR
18551
2805-00-776-8153INTERCHANGEABLE
VALVE,POPPET,ENGINE
11-415
5306-01-214-0134INTERCHANGEABLE
BOLT
18551
4130-01-459-2414INTERCHANGEABLE
VACU-DISC
800-48TP480V
5995-01-613-6342INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
18551

Frequently Asked Questions

What is NSN 6685-01-090-2585?

NSN 6685-01-090-2585 is a Adapter,thermocouple, manufactured by Naval Sea Systems Command, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-090-2585?

NSN 6685-01-090-2585 has 2 cross-referenced part numbers: 820-4530326 PIECE 12 (Naval Sea Systems Command), 1855-1 (Thermo Electric Company Inc. Dba Thermo Electric Company).

What NSN replaces 6685-01-090-2585?

There are 7 known substitutes for 6685-01-090-2585: 5307-00-437-4763, 6145-00-643-0653, 5310-00-687-7578 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820-4530326 PIECE 12?

Key specifications for 820-4530326 PIECE 12: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY PAC TEXT; General Characteristics Item Description: 17/32 IN. SURFACE CLEARANCE; 1/8 IN. NPT THREAD SIZE; SPECIAL REQUIREMENTS FOR NUCLEAR PROPULSION PLANT EQUIPMENT CONTAINED IN INDIVIDUAL REPAIR PARTS ORDERING DATA INSTRUMENTATION CONTROL NO. MH7301A LINE NO. 0013 IN. 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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