The Detector,gas, cataloged under National Stock Number 6665-01-648-1597, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Mine Safety Appliances Company Dba Permanent Instruments Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6665-01-648-1597 |
| Primary Part Number | A-ULTIMAX-XPE11U3S20000000 |
| Item Name | Detector,gas |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Mine Safety Appliances Company Dba Permanent Instruments Division |
| Status | ACTIVE |
| 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 |
|---|---|
| A-ULTIMAX-XPE11U3S20000000 PRIMARY | Mine Safety Appliances Company Dba Permanent Instruments Division (USA) |
| Reference | Meaning |
|---|---|
| A-ULTIMAX-XPE11U3S20000000 | 5/9 Secondary reference United Control Company, Inc. |
NSN 6665-01-648-1597 is a Detector,gas, manufactured by Mine Safety Appliances Company Dba Permanent Instruments Division, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-648-1597 has 1 manufacturer part number on file: A-ULTIMAX-XPE11U3S20000000 (Mine Safety Appliances Company Dba Permanent Instruments Division).
Key specifications for A-ULTIMAX-XPE11U3S20000000: Special Features: MODEL E EXPLOSION PROOF W/DISPLAY,GAS CODE 11 CO-0-100PPM; Part Name Assigned by Controlling Agency: X SERIES GAS MONITOR; End Item Identification: MK50 APL DEVE. 0 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.