The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-263-9439, 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 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-263-9439 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| Scale Name | POUNDS PRESSURE |
| Actuation Type | BOURDON TUBE |
| Criticality Code Justification | ZZZY |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 30.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | DIAL |
| Dial Size | 4-1/2 IN. DIA. IN |
| Graduation Unit | 1.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | LOWER |
| Surface Treatment | PAINT EPOXY CASE |
| Unable to Decode | UNABLE TO DECODE |
| Material | STEEL CORROSION RESISTING ACTUATING ELEMENT |
| Material | PLASTIC PROTECTIVE CRYSTAL |
| Material | ALUMINUM CASE |
| Connection Quantity | 1 |
| Connection Size | 0.250 IN. NPT 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 |
|---|---|
| GS-1 | 5/1 Secondary reference Ashcroft Inc Dba Heise |
| 45-1189S-02L-30/0/30INH20 | 3/1 Design control — primary reference Ashcroft Inc Dba Heise |
NSN 6685-01-263-9439 is a Gage,pressure,dial Indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 6850-01-396-0161, 4240-01-512-4821, 5975-01-667-9402. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-263-9439: Scale Name: POUNDS PRESSURE; Actuation Type: BOURDON TUBE; Criticality Code Justification: ZZZY; Connection Type: EXTERNAL. 19 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 6685-01-263-9439 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.