The Filter Unit,microporous, cataloged under National Stock Number 6640-01-623-7334, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-01-623-7334 |
| Primary Part Number | 225-321 |
| Item Name | Filter Unit,microporous |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Skc Inc |
| 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 |
|---|---|
| 225-321 PRIMARY | Skc Inc (USA) |
| SKC 225-321 | Active Environmental Solutions Alemir International Pty. Ltd. (AUS) |
NSN 6640-01-623-7334 is a Filter Unit,microporous, manufactured by Skc Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-623-7334 has 2 manufacturer part numbers on file: 225-321 (Skc Inc), SKC 225-321 (Active Environmental Solutions Alemir International Pty. Ltd.).
Key specifications for 225-321: Part Name Assigned by Controlling Agency: FILTER. 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.