# NSN 1660-00-326-6251: Housing, Valve

NSN 1660-00-326-6251 (also written 1660003266251; NIIN 00-326-6251) is a housing, valve in Federal Supply Class 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 1660-00-326-6251 (1660003266251)
- NIIN: 00-326-6251 (003266251)
- Item name: HOUSING,VALVE
- 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 Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| SPCL | SPECIAL TEST FEATURES | DRILL E (1/4) (.255-.249) DIAMETER, 1 HOLE; DEPTH: 1.08-1.06; C'DRILL 1/2 (.510-.503);DEPTH: .68-.62; C'BORE: .582-.577 DIAMETER; DEPTH: .098-.083; C'SINK 121 DEGREES - 119 DEGREES X .702-.687 DIAMETER; TAP: 9/16-18, UNF-3B; DEPTH: .51-.47; SPEC: MIL-S-7742 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | HOUSING CONTROL, PRESSURE |
| SUPP | SUPPLEMENTARY FEATURES | MAXIMUM OPERATING TEMPERATURE: +165 DEGREES FAHRENHEIT |
| ARJA | PRESSURE RATING | POUNDS PER SQUARE INCH (PSI) 10.0 |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | 2ND HOLD: DRILL N8 43 (.093-.088) DIAMETER; 3 HOLES; DEPTH: .50-.44; COUNTERSINK; TAP N 4-40, NC-3B; DEPTH: .38-.32; SPEC: MIL-S-7742 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 96936 | 64547 | HONEYWELL INTERNATIONAL, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 96936 | 70210 | HONEYWELL INTERNATIONAL INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 96936 | 72599 | ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-20 | [SPE4A527P0789](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660003266251) | HOUSING, VALVE | AVIARMS SUPPORT CORP | $9,180.00 |
| 2026-10-15 | [SPE4A027P0200](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660003266251) | HOUSING, VALVE | — | $7,788.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660003266251&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660003266251
- 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/1660-00-326-6251/
JSON: https://nsnexplorer.com/api/nsn/1660-00-326-6251.json