PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

330-J57-501Indicator,humidity,plug

Carrier Corp · NSN 6685-01-432-2579 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-432-2579 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-432-2579. Primary manufacturer part number: 330-J57-501.
Features
  • Indicator,humidity,plug — FSC 6685
  • 7 verified cross-references
  • Primary manufacturer: Carrier Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,humidity,plug, cataloged under National Stock Number 6685-01-432-2579, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Carrier Corp. This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIndicator,humidity,plug
FSC / FSG6685 — No Item Name Available (FSG 66)
ManufacturersCarrier Corp (CAGE 10855); Henry Technologies, Inc. (CAGE 28193)
Technical Specifications
ParameterValue
NSN6685-01-432-2579
Primary Part Number330-J57-501
Item NameIndicator,humidity,plug
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerCarrier Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5340-00-587-4178MI-3 INTERCHANGEABLE
Cap,protective,dust and Moisture
C & D Equipment Company, Inc.
6685-01-051-0036 INTERCHANGEABLE
Indicator,humidity,plug
4420-01-421-5290MHE-1211A-1P INTERCHANGEABLE
Cooler,fluid,industrial
Ketema Inc Heat Transfer Div
4820-01-424-6177MJE-25-CP60 INTERCHANGEABLE
Valve,expansion
Parker-Hannifin Corp Div Sporlan Division
4820-01-428-6887330-J57-501 OPR INTERCHANGEABLE
Valve,regulating,fluid Pressure
Carrier Corp
4820-01-431-9138 INTERCHANGEABLE
Valve,safety Relief
6685-01-432-4076G33186 0/200PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-01-432-6327 INTERCHANGEABLE
Gage,pressure,dial Indicating
6680-01-468-1946 INTERCHANGEABLE
Indicator,sight,liquid
Cross-Reference Index
Part NumberManufacturer
330-J57-501 Carrier Corp (USA)
330-J57-701 MI Carrier Corp (USA)
MI-31A-1-5/8S Henry Technologies, Inc. (USA)
MI-3 Henry Technologies, Inc. (USA)
330-J57-501 MI Carrier Corp (USA)
330-J57-701 Carrier Corp (USA)
PL CM/10-94 IT13 Carrier Corp (USA)
Related Parts
5340-00-587-4178INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
MI-3
6685-01-051-0036INTERCHANGEABLE
INDICATOR,HUMIDITY,PLUG
4420-01-421-5290INTERCHANGEABLE
COOLER,FLUID,INDUSTRIAL
MHE-1211A-1P
4820-01-424-6177INTERCHANGEABLE
VALVE,EXPANSION
MJE-25-CP60
4820-01-428-6887INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
330-J57-501 OPR
4820-01-431-9138INTERCHANGEABLE
VALVE,SAFETY RELIEF
6685-01-432-4076INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
G33186 0/200PSI
6685-01-432-6327INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6680-01-468-1946INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID

Frequently Asked Questions

What is NSN 6685-01-432-2579?

NSN 6685-01-432-2579 is a Indicator,humidity,plug, manufactured by Carrier Corp, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-432-2579?

NSN 6685-01-432-2579 has 7 cross-referenced part numbers: 330-J57-501 (Carrier Corp), 330-J57-701 MI (Carrier Corp), MI-31A-1-5/8S (Henry Technologies, Inc.), MI-3 (Henry Technologies, Inc.), 330-J57-501 MI (Carrier Corp) and 2 more.

What NSN replaces 6685-01-432-2579?

There are 9 known substitutes for 6685-01-432-2579: 5340-00-587-4178, 6685-01-051-0036, 4420-01-421-5290 and 6 more. Verify interchangeability with system specifications before substitution.

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