The Probe,sewage Tank, cataloged under National Stock Number 4630-01-629-4318, is classified within Federal Supply Class 4630 (Sewage Treatment Equipment) of the Water Purification and Sewage Treatment group. The manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 7 specifications, 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 | 4630-01-629-4318 |
| Primary Part Number | 3S4A40 |
| Item Name | Probe,sewage Tank |
| FSC / FSG | 4630 / 46 — Sewage Treatment Equipment |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Overall Diameter | 7.5 INCHES NOMINAL IN |
| General Characteristics Item Description | FLANGE MOUNTING IS 7 INCHES IN DIAMETER WITH 4 MOUNTING HOLES 3/4-INCH DIAMETER; 4 SENSOR PROBES SUSPENDED WITHIN A 1-1/2 INCH DIAMETER GALVANIZED PIPE WITH LONGEST SENSOR SUSPENDED 40 INCHES; NEOPRENE BULB INSTALLED AT LOWER END OF PIPE ENCLOSING PROBES IN |
| Reference Data and Literature | GEMS SENSORS FORM 143 SHEET PIN 7800575 REV. C |
| Accessory Components and Quantity | FLEXIBLE BULB ASSEMBLY, 1; TERMINAL HOUSING/PROBE ASSEMBLY, 1; PIPE ASSEMBLY, 1 |
| Functional Description | TANK LEVEL GAUGE |
| Material | IRON AND RUBBER SYNTHETIC AND ALUMINUM |
| Type/model Designation | 3S |
| 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 |
|---|---|
| 3S4A40 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
NSN 4630-01-629-4318 is a Probe,sewage Tank, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 4630, Sewage Treatment Equipment. Status: active.
NSN 4630-01-629-4318 has 1 manufacturer part number on file: 3S4A40 (Setra Systems, Inc. Dba Gems Sensors).
Key specifications for 3S4A40: Overall Diameter: 7.5 INCHES NOMINAL IN; General Characteristics Item Description: FLANGE MOUNTING IS 7 INCHES IN DIAMETER WITH 4 MOUNTING HOLES 3/4-INCH DIAMETER; 4 SENSOR PROBES SUSPENDED WITHIN A 1-1/2 INCH DIAMETER GALVANIZED PIPE WITH LONGEST SENSOR SUSPENDED 40 INCHES; NEOPRENE BULB INSTALLED AT LOWER END OF PIPE ENCLOSING PROBES IN; Reference Data and Literature: GEMS SENSORS FORM 143 SHEET PIN 7800575 REV. C; Overall Length: 58.0 INCHES NOMINAL IN. 7 specifications are 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.