The Drier,air-Gas,desiccant, cataloged under National Stock Number 4440-01-106-1807, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is O'keefe Controls Co.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-106-1807 |
| Primary Part Number | 311B-16 |
| Item Name | Drier,air-Gas,desiccant |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | O'keefe Controls Co. |
| Status | ACTIVE |
| General Characteristics Item Description | OPERATES AT 120 VOLTS/60 HZ; MAXIMUM INLET PRESSURE 125 PSIG; MAXIMUM INLET TEMPERATURE 125 DEGREES F.; AIR CONNECTIONS INLET AND OUTLET 0.250 IN NPT FEMALE; DIMENSIONS 13 IN.BY 13 IN. BY 4 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 311B-16 | O'keefe Controls Co. (USA) |
| Reference | Meaning |
|---|---|
| 220-12432-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4440-01-106-1807 is a Drier,air-Gas,desiccant, manufactured by O'keefe Controls Co., classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-106-1807 has 1 manufacturer part number on file: 311B-16 (O'keefe Controls Co.).
Key specifications for 311B-16: General Characteristics Item Description: OPERATES AT 120 VOLTS/60 HZ; MAXIMUM INLET PRESSURE 125 PSIG; MAXIMUM INLET TEMPERATURE 125 DEGREES F.; AIR CONNECTIONS INLET AND OUTLET 0.250 IN NPT FEMALE; DIMENSIONS 13 IN.BY 13 IN. BY 4 IN. IN; End Item Identification: AN/GSM-263. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.