The Idler Assembly, cataloged under National Stock Number 6665-01-588-2085, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Chemring Sensors and Electronic Systems, Inc. Div Charlotte. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Idler Assembly |
| FSC / FSG | 6665 — Hazard-detecting Instruments and Apparatus (FSG 66) |
| Manufacturers | Battelle Memorial Institute (CAGE 79986); Chemring Sensors and Electronic Systems, Inc. Div Charlotte (CAGE 6KWZ6) |
| Parameter | Value |
|---|---|
| NSN | 6665-01-588-2085 |
| Primary Part Number | 10083875 |
| Item Name | Idler Assembly |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Chemring Sensors and Electronic Systems, Inc. Div Charlotte |
| 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 |
|---|---|
| 40001204-01 | Battelle Memorial Institute (USA) |
| 10083875 PRIMARY | Chemring Sensors and Electronic Systems, Inc. Div Charlotte (USA) |
| Reference | Meaning |
|---|---|
| 10083875 | 5/9 Secondary reference General Dynamics Armament and Technical Products Inc. |
NSN 6665-01-588-2085 is a Idler Assembly, manufactured by Chemring Sensors and Electronic Systems, Inc. Div Charlotte, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-588-2085 has 2 manufacturer part numbers on file: 40001204-01 (Battelle Memorial Institute), 10083875 (Chemring Sensors and Electronic Systems, Inc. Div Charlotte).
1 possible match (shared part number, not a government interchangeability claim): 6695-01-649-8156. 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.