The Gage, cataloged under National Stock Number 6685-01-077-6375, 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 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-077-6375 |
| Item Name | Gage |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Status | ACTIVE |
| General Characteristics Item Description | 2-1/2 IN. DIAL SIZE; 1/4 IN. NPT CONNECTION; RANGE 0 TO 15 IN. WATER IN |
| Extra Long Reference Number | 2 1/2-P733-1/4 NPTCMB-0 TO 15 IN. WATER IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER |
| 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 |
|---|---|
| 2 1/2-P733-1/4 NPTCMB-0 TO 15 I- | 3/1 Design control — primary reference Ametek, Inc. Div Aerospace & Defense |
| 3901144 | 5/9 Secondary reference Brooks Automation, Inc. Div Cti Cryogenics |
NSN 6685-01-077-6375 is a Gage, 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): 3120-01-211-5251. Verify interchangeability with system specifications before substitution.
Key specifications for 6685-01-077-6375: General Characteristics Item Description: 2-1/2 IN. DIAL SIZE; 1/4 IN. NPT CONNECTION; RANGE 0 TO 15 IN. WATER IN; Extra Long Reference Number: 2 1/2-P733-1/4 NPTCMB-0 TO 15 IN. WATER IN; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER. 3 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.