The Housing,plunger,actuator, cataloged under National Stock Number 4810-01-355-3339, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Ostby Barton Test Probes Division Dba Everett Charles Technologies. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-355-3339 |
| Primary Part Number | SPR-4W |
| Item Name | Housing,plunger,actuator |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Ostby Barton Test Probes Division Dba Everett Charles Technologies |
| Status | ACTIVE |
| General Characteristics Item Description | GOLD PLATED NICKEL-SILVER; 1.200 IN. O/A LENGTH; 0.106 IN. LARGEST OD. 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 |
|---|---|
| SPR-4W PRIMARY | Ostby Barton Test Probes Division Dba Everett Charles Technologies (USA) |
| Reference | Meaning |
|---|---|
| 6511644 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
| SPR-4W | 5/9 Secondary reference Ostby-Barton Test Probes |
NSN 4810-01-355-3339 is a Housing,plunger,actuator, manufactured by Ostby Barton Test Probes Division Dba Everett Charles Technologies, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-355-3339 has 1 manufacturer part number on file: SPR-4W (Ostby Barton Test Probes Division Dba Everett Charles Technologies).
Key specifications for SPR-4W: General Characteristics Item Description: GOLD PLATED NICKEL-SILVER; 1.200 IN. O/A LENGTH; 0.106 IN. LARGEST OD. IN. 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.