The Pyrometer,indicating, cataloged under National Stock Number 6685-01-159-0061, 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. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Pyrometer,indicating |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Bellofram Corporation (CAGE 01170) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-159-0061 |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 603922078 PRIMARY | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2670E-17 | 5/9 Secondary reference Alnor Instrument Company |
| 8396382 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| PX2740 | 5/9 Secondary reference Alnor Instrument Company |
| 2670E-17-0-1200DEG | 5/9 Secondary reference Thermo-Couple Products Co Inc |
NSN 6685-01-159-0061 is a Pyrometer,indicating, manufactured by Bellofram Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-159-0061 has 1 manufacturer part number on file: 603922078 (Bellofram Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-413-1116, 6685-01-568-3399. 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.