The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-172-5335, 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 Hhe Services, Inc.. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-172-5335 |
| Primary Part Number | LFP-224-0-3000SILICONE |
| Item Name | Gage,pressure,dial Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Hhe Services, Inc. |
| Status | ACTIVE |
| Scale Accuracy | PORM 2 PCT MIDDLE,3 PCT REMAINDER |
| Scale Name | PRESSURE |
| Overall Diameter | 3.200 INCHES NOMINAL IN |
| Actuation Type | BOURDON TUBE |
| Mounting Method | PANEL |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Smallest Increment | 100.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Connection Type | EXTERNAL |
| Scale Range | +0.0 TO 3000.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Pointer Type | INDICATING |
| Adjustability | ADJUSTABLE |
| Scale Type | SINGLE |
| Connector Type Vent | NOT PROVIDED |
| Dial Size | 2-1/2 IN. DIA IN |
| Graduation Unit | 500.0 POUNDS PER SQUARE INCH LBS |
| Connection Location | BACK, CENTER |
| Pointer Color | BLACK |
| Material | PLASTIC CASE |
| Material | BRASS ACTUATING ELEMENT |
| Material | PLASTIC METHYL METHACRYLATE PROTECTIVE CRYSTAL |
| Connection Quantity | 1 |
| Connection Size | 0.250 IN. NPT DIA IN |
| 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-224-0-3000SILICONE PRIMARY | Hhe Services, Inc. (USA) |
| Reference | Meaning |
|---|---|
| LFP-224-0-3000SILCNE | 3/9 Design control — primary reference Span Instruments Inc |
NSN 6685-01-172-5335 is a Gage,pressure,dial Indicating, manufactured by Hhe Services, Inc., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-172-5335 has 1 manufacturer part number on file: LFP-224-0-3000SILICONE (Hhe Services, Inc.).
Key specifications for LFP-224-0-3000SILICONE: Scale Accuracy: PORM 2 PCT MIDDLE,3 PCT REMAINDER; Scale Name: PRESSURE; Overall Diameter: 3.200 INCHES NOMINAL IN; Actuation Type: BOURDON TUBE. 22 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.