The Valve Assembly,fill, cataloged under National Stock Number 3950-01-222-9661, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3950-01-222-9661 |
| Primary Part Number | C-3551 |
| Item Name | Valve Assembly,fill |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE,PER MIL-B-16541 |
| 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 |
|---|---|
| 442-7786 PIECE 14 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| C-3551 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 442-7786 | D/9 Drawing number reference only Howell Laboratories Inc Dba Howell Laboratories Inc |
| 442-7786 | D/9 Drawing number reference only U.S. Government activity |
NSN 3950-01-222-9661 is a Valve Assembly,fill, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-222-9661 has 2 manufacturer part numbers on file: 442-7786 PIECE 14 (Howell Laboratories Inc Dba Howell Laboratories Inc), C-3551 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for C-3551: General Characteristics Item Description: BRONZE,PER MIL-B-16541; End Item Identification: 3950-00-443-5629. 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.