The Weight,tester,pressure Gage, cataloged under National Stock Number 6685-00-421-2100, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-421-2100 |
| Item Name | Weight,tester,pressure Gage |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | DIE CAST ZINC ALLOY,3.500 IN. MIN 3.510 IN. MAX DIA,0.350 IN. MIN 0.360 IN. MAX THK,2.985 IN. MIN 2.995 IN. MAX STEP DIA,3.005 IN. MIN 3.015 IN. MAX DIA BY 0.156 IN. MIN 0.161 IN. MAX DEEP CENTER CUTOUT,0.266 IN. DIA CENTER HOLE,MARKED 5 AND 25 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 |
|---|---|
| WG-23 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-00-421-2100 is a Weight,tester,pressure Gage, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
Key specifications for 6685-00-421-2100: General Characteristics Item Description: DIE CAST ZINC ALLOY,3.500 IN. MIN 3.510 IN. MAX DIA,0.350 IN. MIN 0.360 IN. MAX THK,2.985 IN. MIN 2.995 IN. MAX STEP DIA,3.005 IN. MIN 3.015 IN. MAX DIA BY 0.156 IN. MIN 0.161 IN. MAX DEEP CENTER CUTOUT,0.266 IN. DIA CENTER HOLE,MARKED 5 AND 25 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.