The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-657-8388, 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 Thuemling Industrial Products Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Thuemling Industrial Products Inc (CAGE 0KMP4) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-657-8388 |
| Primary Part Number | LFP-412-SV4 |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Thuemling Industrial Products Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| LFP-412-SV4 PRIMARY | Thuemling Industrial Products Inc (USA) |
| AA70012 REV A LFP-412-SV4 | Thuemling Industrial Products Inc (USA) |
| Reference | Meaning |
|---|---|
| AA70012 | D/9 Drawing number reference only Thuemling Industrial Products Inc |
NSN 6685-01-657-8388 is a Gage,pressure,dial Indicating, manufactured by Thuemling Industrial Products Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-657-8388 has 2 manufacturer part numbers on file: LFP-412-SV4 (Thuemling Industrial Products Inc), AA70012 REV A LFP-412-SV4 (Thuemling Industrial Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-657-8405. Verify interchangeability with system specifications before substitution.
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.