# NSN 6640-01-138-5753: Filter Element, Agent Sampling Ex

NSN 6640-01-138-5753 (also written 6640011385753; NIIN 01-138-5753) is a filter element, agent sampling ex in Federal Supply Class 6640, Laboratory Equipment and Supplies. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 6640-01-138-5753 (6640011385753)
- NIIN: 01-138-5753 (011385753)
- Item name: FILTER ELEMENT,AGENT SAMPLING EX
- Federal Supply Class: [FSC 6640 Laboratory Equipment and Supplies](https://nsnexplorer.com/fsc/6640/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| SUCB | UNIT OF ISSUE CUBE | CUBIC FEET 0.002 |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | MATL FIBERGLASS STRANDS AND MICROGLASS FIBERS,1-7/8 IN. DIA,0.014 P/M 0.003 IN. THK,USED IN SAMPLING AIR FOR RADIOACTIVE PARTICULATES,UNIT QTY 10 PER PKG |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS MODIFIED BY HOLLINGSWORTH AND VOSE'S RAW MATERIALS AND DIMENSIONS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 28784-1.875 IN. DIA. | 55799 | MINE SAFETY APPLIANCES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-F-37956 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NSN 6640-01-138-5753 | 06421 | TRUETECH, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-20 | [SPE2DS27P0228](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6640011385753) | FILTER ELEMENT, AGENT SAMPLING EXTRACTOR | LUXFER MAGTECH, INC. | $12,308.15 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6640011385753&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6640011385753
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/6640-01-138-5753/
JSON: https://nsnexplorer.com/api/nsn/6640-01-138-5753.json