The Disk,filtering,microporous, cataloged under National Stock Number 6640-01-673-0664, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-673-0664 |
| Primary Part Number | 570073350020 |
| Item Name | Disk,filtering,microporous |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division |
| Status | ACTIVE |
| Filtration Rating in Microns | 2.0 NOMINAL |
| Filtering Area | 0.40 SQUARE CENTIMETERS NOMINAL |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| 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 |
|---|---|
| NC9702719 | Fisher Scientific Company L.l.c. Dba Fisher Healthcare (USA) |
| 570073350020 PRIMARY | Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division (USA) |
| Reference | Meaning |
|---|---|
| 6640NCM184317 | 5/1 Secondary reference Defense Medical Standardization Board |
| 1515823 | 5/1 Secondary reference U.S. Government activity |
NSN 6640-01-673-0664 is a Disk,filtering,microporous, manufactured by Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-673-0664 has 2 manufacturer part numbers on file: NC9702719 (Fisher Scientific Company L.l.c. Dba Fisher Healthcare), 570073350020 (Thermo Fisher Scientific (asheville) Llc Div Laboratory Products Division).
Key specifications for 570073350020: Filtration Rating in Microns: 2.0 NOMINAL; Filtering Area: 0.40 SQUARE CENTIMETERS NOMINAL; Special Features: USED ON SEQUENTIAL AMBIANT AIR MONITORING SYSTEM; POLYTETRAFLUOROETHYLENE FILTER; 40MM; 2 MICRONS; MICROPOROUS MM; Part Name Assigned by Controlling Agency: DISK FILTERING MICROPOROUS 40MM FILTER AREA 20'S 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.
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.