The Pyrometer,indicating, cataloged under National Stock Number 6685-01-154-6940, 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 Bellofram Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 6685-01-154-6940 |
| Primary Part Number | 603922078 |
| Item Name | Pyrometer,indicating |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PANEL |
| Scale Calibration | CALIBRATED FOR 10 OHM RESISTANCE |
| Overall Thickness | 7.312 INCHES NOMINAL IN |
| Measurement Type | MILLIVOLT CIRCUIT |
| Style Designator | PORTABLE, SELF CONTAINED |
| Pointer/pen Type and Quantity | 1 INDICATING SINGLE |
| Scale Type | ARC |
| Scale Measurement Range | +0.000 TO 1200.000 DEG FAHRENHEIT |
| Scale Length | 3.625 INCHES NOMINAL IN |
| Material | STEEL METER CASE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 603922078 PRIMARY | Bellofram Corporation (USA) |
| 2670E-J-0-1200F17CKT PRIMARY | Alnor Instrument Company (USA) |
NSN 6685-01-154-6940 is a Pyrometer,indicating, manufactured by Bellofram Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-154-6940 has 2 manufacturer part numbers on file: 603922078 (Bellofram Corporation), 2670E-J-0-1200F17CKT (Alnor Instrument Company).
2 possible matches (shared part number, not a government interchangeability claim): 6685-01-159-0061, 5930-01-413-1116. Verify interchangeability with system specifications before substitution.
Key specifications for 603922078: Mounting Facility Type and Quantity: 1 PANEL; Overall Height: 15.125 INCHES NOMINAL IN; Scale Calibration: CALIBRATED FOR 10 OHM RESISTANCE; Overall Thickness: 7.312 INCHES NOMINAL IN. 10 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.
NSN 6685-01-154-6940 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.