The Filter Unit,microporous, cataloged under National Stock Number 6640-01-340-5488, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Skc Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-340-5488 |
| Primary Part Number | 225-8202 |
| Item Name | Filter Unit,microporous |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Skc Inc |
| Status | ACTIVE |
| Absorbent Pad | INCLUDED |
| Filtration Rating in Microns | 5.0 ABSOLUTE |
| Filtering Area | 9.0 SQUARE CENTIMETERS NOMINAL |
| Unit Package Type | PACKAGE |
| Filter Disk Size Accommodated | 37.0 MILLIMETERS MM |
| Unit Package Quantity | 50 |
| Accessory Components and Quantity | MATCHED WEIGHT POLYVINYL CHLORIDE MEMBRANE FILTER 2; SUPPORT PAD 1; 3 PIECE CASSETTE CASE 1; SEALING PLUGS 2 |
| Unit Type | AEROSOL |
| Material | PLASTIC STYRENE AND PLASTIC ACRYLONITRILE |
| Grid Markings | NOT INCLUDED |
| 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 |
|---|---|
| 225-8202 PRIMARY | Skc Inc (USA) |
| Reference | Meaning |
|---|---|
| 91-4-19-55 LAP | 5/1 Secondary reference Air Force Medical Logistics Office |
| F91D146 | 5/1 Secondary reference Air Force Medical Logistics Office |
NSN 6640-01-340-5488 is a Filter Unit,microporous, manufactured by Skc Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-340-5488 has 1 manufacturer part number on file: 225-8202 (Skc Inc).
Key specifications for 225-8202: Absorbent Pad: INCLUDED; Filtration Rating in Microns: 5.0 ABSOLUTE; Filtering Area: 9.0 SQUARE CENTIMETERS NOMINAL; Unit Package Type: PACKAGE. 10 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.