The Thermometer,self-Indicating, cataloged under National Stock Number 6685-00-244-0786, 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 Ashcroft Inc Dba Heise. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-00-244-0786 |
| Primary Part Number | N15-L-9-73-0 |
| Item Name | Thermometer,self-Indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Extension Neck Diameter | 1.500 INCHES NOMINAL1.500 INCHES NOMINAL IN |
| Neck Length | 2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN |
| Socket Overall Length | 6.813 INCHES NOMINAL6.813 INCHES NOMINAL IN |
| Design Type | FLUCTUATINGFLUCTUATING |
| Separable Socket Style | LAGGING EXTENSIONLAGGING EXTENSION |
| Scale Inscription/background Color | BLACK MARKING ON SILVER BACKGROUNDBLACK MARKING ON SILVER BACKGROUND |
| Scale Smallest Increment | 10.0 DEG FAHRENHEIT10.0 DEG FAHRENHEIT |
| Actuating Medium | MERCURYMERCURY |
| Features Provided | LENS MAGNIFYING FRONTLENS MAGNIFYING FRONT |
| Scale Type | VERTICALVERTICAL |
| Nondefinitive Spec/std Data | 3 CLASS AND B FORM AND F RANGE AND 1 TYPE |
| Bulb Tip Outside Diameter | 0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN |
| External Thread Size | 1 IN. NPT1 IN. NPT IN |
| Surface Treatment | ENAMEL METER CASE |
| Internal Thread Size | 1-1/4 IN. -18 NEF-21-1/4 IN. -18 NEF-2 IN |
| Material | BRASS OR IRON MALLEABLE OR STEEL OR ALUMINUM ALLOY METER CASE |
| Scale Adjustment Variation | 2 DIVISION2 DIVISION |
| Tip Length | 2.563 INCHES NOMINAL2.563 INCHES NOMINAL 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 |
|---|---|
| N15-L-9-73-0 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| GG-T-321 | 4/1 Identification reference U.S. Government activity |
NSN 6685-00-244-0786 is a Thermometer,self-Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-244-0786 has 1 manufacturer part number on file: N15-L-9-73-0 (Ashcroft Inc Dba Heise).
Key specifications for N15-L-9-73-0: Extension Neck Diameter: 1.500 INCHES NOMINAL1.500 INCHES NOMINAL IN; Neck Length: 2.500 INCHES NOMINAL2.500 INCHES NOMINAL IN; Socket Overall Length: 6.813 INCHES NOMINAL6.813 INCHES NOMINAL IN; Design Type: FLUCTUATINGFLUCTUATING. 18 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.