The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-514-7450, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Koehler Instrument Company, Inc.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-514-7450 |
| Primary Part Number | 311-005-001 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Koehler Instrument Company, Inc. |
| Status | ACTIVE |
| Connection Type | EXTERNAL |
| Connector Type Vent | NOT PROVIDED |
| Connection Location | BOTTOM |
| Connection Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 311-005-001 PRIMARY | Koehler Instrument Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 90006A0190 | D/9 Drawing number reference only Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
NSN 6685-01-514-7450 is a Gage,pressure,dial Indicating, manufactured by Koehler Instrument Company, Inc., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-514-7450 has 1 manufacturer part number on file: 311-005-001 (Koehler Instrument Company, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4710-01-514-8734, 5999-01-514-9285. Verify interchangeability with system specifications before substitution.
Key specifications for 311-005-001: Connection Type: EXTERNAL; Connector Type Vent: NOT PROVIDED; Connection Location: BOTTOM; End Item Identification: TACTICAL PETROLEUM LAB,TPLM-100,NSN 6640-01-399-0483. 4 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.