The Filter Unit,microporous, cataloged under National Stock Number 6640-01-618-2929, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is F & J Specialty Products, Inc. Dba F & J Specialty Products Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6640-01-618-2929 |
| Primary Part Number | FJ-53P |
| Item Name | Filter Unit,microporous |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | F & J Specialty Products, Inc. Dba F & J Specialty Products Inc |
| Status | ACTIVE |
| Overall Diameter | 2.500 INCHES NOMINAL IN |
| Filter Disk Size Accommodated | 47.0 MILLIMETERS MM |
| 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 |
|---|---|
| FJ-53P PRIMARY | F & J Specialty Products, Inc. Dba F & J Specialty Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 302519 | 5/1 Secondary reference U.S. Government activity |
| 6665NCM139063 | 5/1 Secondary reference Defense Medical Standardization Board |
NSN 6640-01-618-2929 is a Filter Unit,microporous, manufactured by F & J Specialty Products, Inc. Dba F & J Specialty Products Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-618-2929 has 1 manufacturer part number on file: FJ-53P (F & J Specialty Products, Inc. Dba F & J Specialty Products Inc).
Key specifications for FJ-53P: Overall Height: 1.000 INCHES NOMINAL IN; Overall Diameter: 2.500 INCHES NOMINAL IN; Filter Disk Size Accommodated: 47.0 MILLIMETERS MM; Special Features: FILTER HOLDER; USED TO HOLD THE AIR SAMPLING MEDIA FOR MODEL M AIR SAMPLER; 2.5 IN DIA X 1 IN H; USED WITH 47 MM DIAMETER FILTERS; CASING MATERIAL: METAL; THREAD CONNECTION: 0.375 IN FPT MM. 2 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.