The Plunger,steam Trap, cataloged under National Stock Number 4730-00-331-9933, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters. 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-331-9933 |
| Primary Part Number | B1H6 |
| Item Name | Plunger,steam Trap |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,0.641 IN.LG,ONE END THD MALE,1/4-28 UNF,HEX 0.375 IN.WRENCHING,OTHER END,CONE SHAPE SEATING DEVICE 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 |
|---|---|
| N400-2135PC4 1-2 | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| B1H6 PRIMARY | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| Reference | Meaning |
|---|---|
| CV22S48-497PC4 1-2 | 3/2 Design control — primary reference U.S. Government activity |
| CL40S38-61ALT1PC41-2 | 3/2 Design control — primary reference U.S. Government activity |
| CB1S3802-309457PC4 1-2 | 3/2 Design control — primary reference U.S. Government activity |
| CL55S38-4ALT1PC43-8 | 3/2 Design control — primary reference U.S. Government activity |
| CL55S48-497ALT3PC4-1-2 | 3/2 Design control — primary reference U.S. Government activity |
| CL40S48-0531PC4 1-2 | 3/2 Design control — primary reference U.S. Government activity |
| CL40S38-59ALT2PC43-8 | 3/2 Design control — primary reference U.S. Government activity |
| CL46S48-0531 1-2PC4 | 3/2 Design control — primary reference U.S. Government activity |
| DD692S4810-244948PC71-2 | 3/2 Design control — primary reference U.S. Government activity |
| CL40S38-59ALT2PC41-2 | 3/2 Design control — primary reference U.S. Government activity |
| DD828S4810-317370PC4 3-8 | 3/2 Design control — primary reference U.S. Government activity |
| CL40S48-0530PC4 1-2 | 3/2 Design control — primary reference U.S. Government activity |
| AV4S48-0386PC4 3-8 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-331-9933 is a Plunger,steam Trap, manufactured by Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-331-9933 has 2 manufacturer part numbers on file: N400-2135PC4 1-2 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters), B1H6 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters).
Key specifications for B1H6: General Characteristics Item Description: STEEL,0.641 IN.LG,ONE END THD MALE,1/4-28 UNF,HEX 0.375 IN.WRENCHING,OTHER END,CONE SHAPE SEATING DEVICE IN; End Item Identification: STEAM TRAP,THE TRANE CO MODEL B1. 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.