PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2156-6Indicator,humidity,card

Clariant Corp Div Clariant Corporation · NSN 6685-00-999-1603 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-999-1603 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-999-1603. Primary manufacturer part number: 2156-6.
Features
  • Indicator,humidity,card — FSC 6685
  • Style Designator: CIRCULAR
  • Supplementary Features: MISSILE,AIR TO AIR,SPARROW -AIM-7-
  • Special Markings: REPRESERVE WHEN PINK
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Clariant Corp Div Clariant Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,humidity,card, cataloged under National Stock Number 6685-00-999-1603, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Clariant Corp Div Clariant Corporation. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-999-1603
Primary Part Number2156-6
Item NameIndicator,humidity,card
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerClariant Corp Div Clariant Corporation
StatusACTIVE
Style DesignatorCIRCULAR
Supplementary FeaturesMISSILE,AIR TO AIR,SPARROW -AIM-7-
Special MarkingsREPRESERVE WHEN PINK
Overall Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2920-00-164-3243MA24900G INTERCHANGEABLE
Generator,engine Accessory
Prestolite Electric Inc
5305-01-166-550021566 INTERCHANGEABLE
Screw
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5310-01-266-8510215-66 INTERCHANGEABLE
Washer,lock
Ingersoll Rand Co Athens Plant
8145-01-538-3058 INTERCHANGEABLE
Shipping and Storage Container,m
4210-01-610-698621566 INTERCHANGEABLE
Nrp,ext Dual Agent
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
2156-6 PRIMARY Clariant Corp Div Clariant Corporation (USA)
Related Parts
2920-00-164-3243INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
MA24900G
5305-01-166-5500INTERCHANGEABLE
SCREW
21566
5310-01-266-8510INTERCHANGEABLE
WASHER,LOCK
215-66
8145-01-538-3058INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,M
4210-01-610-6986INTERCHANGEABLE
NRP,EXT DUAL AGENT
21566

Frequently Asked Questions

What is NSN 6685-00-999-1603?

NSN 6685-00-999-1603 is a Indicator,humidity,card, manufactured by Clariant Corp Div Clariant Corporation, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-999-1603?

NSN 6685-00-999-1603 has 1 cross-referenced part number: 2156-6 (Clariant Corp Div Clariant Corporation).

What NSN replaces 6685-00-999-1603?

There are 5 known substitutes for 6685-00-999-1603: 2920-00-164-3243, 5305-01-166-5500, 5310-01-266-8510 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2156-6?

Key specifications for 2156-6: Style Designator: CIRCULAR; Supplementary Features: MISSILE,AIR TO AIR,SPARROW -AIM-7-; Special Markings: REPRESERVE WHEN PINK; Overall Diameter: 0.750 INCHES NOMINAL IN. 4 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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