The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-166-8103, 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 18 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-166-8103 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Actuation Type | BOURDON TUBE |
| Scale Inscription/background Color | DULL WHITE BACKGROUND WITH BLACK PAINTED GRADUATIONS,LETTERS AND NUMERALS |
| Criticality Code Justification | ZZZY |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 400.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | REFERENCE |
| Scale Type | BROAD ARC DIAL |
| Connector Type Vent | PROVIDED |
| Dial Size | 4-1/2 IN.DIA. IN |
| Graduation Unit | 5.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK |
| Unable to Decode | UNABLE TO DECODE |
| Material | COPPER ALLOY AND NICKEL ALLOY ACTUATING ELEMENT |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Bezel Type | SNAP-ON |
| Connection Size | 0.250 IN.O.D.FLARELESS TUBE FITTING IN |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| SA24-3PKF-RWZX | 3/1 Design control — primary reference Weksler Glass Thermometer Corp |
| 00635 ITEM 10 | 5/1 Secondary reference Weksler Glass Thermometer Corp |
| MT-GA4/216-4363288 | 5/1 Secondary reference U.S. Government activity |
| G27-80 | 5/1 Secondary reference Weksler Glass Thermometer Corp |
| EA24-3PKF-RWZX | 5/1 Secondary reference Ashcroft Inc Dba Heise |
NSN 6685-01-166-8103 is a Gage,pressure,dial Indicating, 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): 6685-01-168-0442. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-166-8103: Actuation Type: BOURDON TUBE; Scale Inscription/background Color: DULL WHITE BACKGROUND WITH BLACK PAINTED GRADUATIONS,LETTERS AND NUMERALS; Criticality Code Justification: ZZZY; Connection Type: EXTERNAL. 18 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.
NSN 6685-01-166-8103 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.