The Chamber,pressure,high, cataloged under National Stock Number 6685-00-177-2252, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-177-2252 |
| Item Name | Chamber,pressure,high |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL; CADMIUM PLATE FINISH; 4 IN. W; 4.750 IN. H; 6 MTG HOLES EQUALLY SPACED ON 3.250 IN. BOLT CIRCLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 377338 | 3/9 Design control — primary reference Rosemount Analytical, Inc. Div Process Analytical Division |
NSN 6685-00-177-2252 is a Chamber,pressure,high, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3460-01-617-1821. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-00-177-2252: General Characteristics Item Description: MATERIAL STEEL; CADMIUM PLATE FINISH; 4 IN. W; 4.750 IN. H; 6 MTG HOLES EQUALLY SPACED ON 3.250 IN. BOLT CIRCLE IN. 1 specification is 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.