PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5581-02Indicator,temperature,thermocoup

Howell Laboratories Inc Dba Howell Laboratories Inc · NSN 6685-01-568-4164 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-568-4164 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-568-4164. Primary manufacturer part number: 5581-02.
Features
  • Indicator,temperature,thermocoup — FSC 6685
  • 2 verified cross-references
  • Primary manufacturer: Howell Laboratories Inc Dba Howell Laboratories Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,temperature,thermocoup, cataloged under National Stock Number 6685-01-568-4164, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-568-4164
Primary Part Number5581-02
Item NameIndicator,temperature,thermocoup
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHowell Laboratories Inc Dba Howell Laboratories Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-00-544-3943558102 INTERCHANGEABLE
Wrench Spanner
Stewart-Warner Corporation
2520-00-871-6772114-8202A INTERCHANGEABLE
Spider,universal Joint,vehicular
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
Cross-Reference Index
Part NumberManufacturer
FIGURE 7-1-5 Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
5581-02 PRIMARY Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
Related Parts
5120-00-544-3943INTERCHANGEABLE
WRENCH SPANNER
558102
2520-00-871-6772INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
114-8202A

Frequently Asked Questions

What is NSN 6685-01-568-4164?

NSN 6685-01-568-4164 is a Indicator,temperature,thermocoup, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-568-4164?

NSN 6685-01-568-4164 has 2 cross-referenced part numbers: FIGURE 7-1-5 (Howell Laboratories Inc Dba Howell Laboratories Inc), 5581-02 (Howell Laboratories Inc Dba Howell Laboratories Inc).

What NSN replaces 6685-01-568-4164?

There are 2 known substitutes for 6685-01-568-4164: 5120-00-544-3943, 2520-00-871-6772. Verify interchangeability with system specifications before substitution.

What are the specifications of 5581-02?

Key specifications for 5581-02: Part Name Assigned by Controlling Agency: (INAVY)GUAGE, TEMPERATURE; End Item Identification: DEHYDRATOR, L. 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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