The Indicator,humidity,plug, cataloged under National Stock Number 6685-01-170-1121, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Clariant Corp Div Clariant Corporation. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-170-1121 |
| Primary Part Number | 2175-2345S-PDA3 |
| Item Name | Indicator,humidity,plug |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Clariant Corp Div Clariant Corporation |
| Status | ACTIVE |
| Width Across Flats | 1.875 INCHES NOMINAL IN |
| Desiccant Spot Humidity Percentage | 20.0 AND 30.0 AND 40.0 AND 50.0 |
| Supplementary Features | RESILIENT MEMBER MATERIAL IS RUBBER, SILICA GEL |
| End Connection Type | THREADED EXTERNAL, PLAIN SINGLE END |
| Style Designator | PLUG |
| Material Document and Classification | MIL-I-26860 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND SINGLE END |
| Nominal Thread Size | 1.438 INCHES SINGLE END IN |
| Thread Class | 2A SINGLE END A |
| Material | ALUMINUM ALLOY 2024 |
| Thread Series Designator | UNEF SINGLE END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2175-2345S-PDA3 PRIMARY | Clariant Corp Div Clariant Corporation (USA) |
NSN 6685-01-170-1121 is a Indicator,humidity,plug, manufactured by Clariant Corp Div Clariant Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-170-1121 has 1 manufacturer part number on file: 2175-2345S-PDA3 (Clariant Corp Div Clariant Corporation).
Key specifications for 2175-2345S-PDA3: Overall Height: 0.625 INCHES NOMINAL IN; Width Across Flats: 1.875 INCHES NOMINAL IN; Desiccant Spot Humidity Percentage: 20.0 AND 30.0 AND 40.0 AND 50.0; Supplementary Features: RESILIENT MEMBER MATERIAL IS RUBBER, SILICA GEL. 11 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.