The Radiacmeter, cataloged under National Stock Number 6665-01-486-2937, is classified within Federal Supply Class 6665 (Hazard-detecting Instruments and Apparatus) of the Instruments and Laboratory Equipment group. The manufacturer of record is Southern Scientific Ltd. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6665-01-486-2937 |
| Primary Part Number | MULT-O-METER420L |
| Item Name | Radiacmeter |
| FSC / FSG | 6665 / 66 — Hazard-detecting Instruments and Apparatus |
| Manufacturer | Southern Scientific Ltd |
| Status | ACTIVE |
| Indicator Type | VISUAL |
| Portability | PORTABLE |
| Features Provided | INTERNAL BATTERY ACCOMMODATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MULT-O-METER420L | Southern Scientific Ltd (GBR) |
| Reference | Meaning |
|---|---|
| MULT-O-METER MODEL 420 | 5/9 Secondary reference Southern Scientific Ltd |
| MULT-O-METER MODEL 420L | 3/9 Design control — primary reference Unfors Raysafe, Inc. |
| MULT-O-METER MODEL 420 | 5/9 Secondary reference Unfors Raysafe, Inc. |
NSN 6665-01-486-2937 is a Radiacmeter, manufactured by Southern Scientific Ltd, classified under FSC 6665, Hazard-detecting Instruments and Apparatus. Status: active.
NSN 6665-01-486-2937 has 1 manufacturer part number on file: MULT-O-METER420L (Southern Scientific Ltd).
Key specifications for MULT-O-METER420L: Overall Height: 28.0 MILLIMETERS NOMINAL MM; Indicator Type: VISUAL; Portability: PORTABLE; Overall Length: 142.0 MILLIMETERS NOMINAL MM. 3 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 6665-01-486-2937 has DEMIL Code C. 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.