The Valve Assembly,dehydrator, cataloged under National Stock Number 4440-01-202-9636, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4440-01-202-9636 |
| Primary Part Number | 4800C-G501 |
| Item Name | Valve Assembly,dehydrator |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| General Characteristics Item Description | MODIFIED BRASS VALVE 1,BRASS SOFT SEAT VALVE 1,CONNECTOR 3,LOCKWASHER 2,SCREWS 2; MEDAI AIR |
| 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 |
|---|---|
| 4800C-G501 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 4800 | D/9 Drawing number reference only Howell Laboratories Inc Dba Howell Laboratories Inc |
| 4800-G501 | C/1 Advisory reference — outside the item-of-supply concept Howell Laboratories Inc Dba Howell Laboratories Inc |
| 4800C | 5/9 Secondary reference Howell Laboratories Inc Dba Howell Laboratories Inc |
NSN 4440-01-202-9636 is a Valve Assembly,dehydrator, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-01-202-9636 has 1 manufacturer part number on file: 4800C-G501 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 4800C-G501: General Characteristics Item Description: MODIFIED BRASS VALVE 1,BRASS SOFT SEAT VALVE 1,CONNECTOR 3,LOCKWASHER 2,SCREWS 2; MEDAI AIR; End Item Identification: HOWELL LABORATORIES INC AIR DEHYDRATOR MODEL NO. 4737. 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.