The Housing and Bellows Assembly, cataloged under National Stock Number 6685-01-010-2120, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-010-2120 |
| Primary Part Number | 4505-44 |
| Item Name | Housing and Bellows Assembly |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| Status | ACTIVE |
| General Characteristics Item Description | 3.375 IN. O/A DIA; 2.250 IN. H; PART NUMBERS 4505-45-G 1; 4505-1-G 1; 4505-6-G 2; 4505-36-G 1; 3092-35-G 1 IN |
| 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 |
|---|---|
| 4505-44 PRIMARY | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
NSN 6685-01-010-2120 is a Housing and Bellows Assembly, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-010-2120 has 1 manufacturer part number on file: 4505-44 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).
Key specifications for 4505-44: General Characteristics Item Description: 3.375 IN. O/A DIA; 2.250 IN. H; PART NUMBERS 4505-45-G 1; 4505-1-G 1; 4505-6-G 2; 4505-36-G 1; 3092-35-G 1 IN; End Item Identification: BOILERS,1200 PSI. 1 specification is 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.