# NSN 1660-00-521-7175: Insulation Pipe Covering, Thermal

NSN 1660-00-521-7175 (also written 1660005217175; NIIN 00-521-7175) is an insulation pipe covering, thermal in Federal Supply Class 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Nov 2026.

## Identification

- NSN: 1660-00-521-7175 (1660005217175)
- NIIN: 00-521-7175 (005217175)
- Item name: INSULATION PIPE COVERING,THERMAL
- Federal Supply Class: [FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment](https://nsnexplorer.com/fsc/1660/)
- Federal Supply Group: [FSG 16](https://nsnexplorer.com/group/16/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-11-06)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | C-130 AIRCRAFT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 370453-9 | 98897 | LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-05 | [SPE4A520DP002/SPE4AX27F2722](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660005217175) | INSULATION PIPE COVERING, THERMAL, AIRCRAF | DERCO AEROSPACE, INC. DBA DERCO AEROSPACE, INC. A LOCKHEED MARTIN COMPANY | $5.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660005217175&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660005217175
- 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.

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