# NSN 5640-00-173-6591: Insulation Felt, Thermal

NSN 5640-00-173-6591 (also written 5640001736591; NIIN 00-173-6591) is an insulation felt, thermal in Federal Supply Class 5640, Wallboard, Building Paper, and Thermal Insulation Materials. 7 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 5640-00-173-6591 (5640001736591)
- NIIN: 00-173-6591 (001736591)
- Item name: INSULATION FELT,THERMAL
- Federal Supply Class: [FSC 5640 Wallboard, Building Paper, and Thermal Insulation Materials](https://nsnexplorer.com/fsc/5640/)
- Federal Supply Group: [FSG 56](https://nsnexplorer.com/group/56/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABGL | WIDTH | INCHES NOMINAL 60.000 |
| ABRY | LENGTH | INCHES NOMINAL 540.000 |
| ABNM | THICKNESS | INCHES NOMINAL 1.000 |
| FEAT | SPECIAL FEATURES | FACED WITH 0.5-MIL THICK POLYESTER FILM REINFORCED WITH FOUR-YARNS-PER-INCH BY THREE-YARNS-PER-INCH FIBROUS GLASS SCRIM ADHERED TO POLYESTER FILM WITH FIRE-RETARDANT THERMOSETTING ADHESIVE *NOT TO BE USED ON SUBMARINES* |
| MATT | MATERIAL | LOCATION NOT OTHERWISE SPECIFIED GLASS FIBER |
| MATT | MATERIAL | BINDER PLASTIC POLYESTER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 003-00500 | 52307 | THE CLAREMONT SALES CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 003-01000 | 52307 | THE CLAREMONT SALES CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-DTL-32585 | 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/) |
| MIL-DTL-32585 TYIFM3FCA 1"X60"X5 | 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/) |
| MIL-DTL-32585 TYIFM3FCD | 80244 | GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-I-16411 | 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/) |
| MIL-I-16411 TY2 | 80244 | GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-07 | [SPE8E626P0845](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5640001736591) | INSULATION FELT, THE | — | $139,294.08 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5640001736591&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5640001736591
- 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/5640-00-173-6591/
JSON: https://nsnexplorer.com/api/nsn/5640-00-173-6591.json