The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-004-2806, 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 Nicholson Steam Trap Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-004-2806 |
| Primary Part Number | 1IN.150LBS.DFA-B60(0.113) |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Nicholson Steam Trap Inc |
| Status | ACTIVE |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Strainer Type and Quantity | 1 SCREEN |
| End Connection Component Type and Size for Which Designed | 1 IN. OD TUBE IN |
| End Connection Type | UNTHREADED FEMALE LOCATION NOT OTHERWISE SPECIFIED |
| Valve Size | 1.000 INCHES IN |
| Orifice Diameter | 0.113 INCHES NOMINAL IN |
| End Connection Similarity | NOT IDENTICAL |
| 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 |
|---|---|
| 1IN.150LBS.DFA-B60(0.113) PRIMARY | Nicholson Steam Trap Inc (USA) |
| Reference | Meaning |
|---|---|
| D00L1D113DOME | 5/9 Secondary reference Nicholson Steam Trap Inc |
| D00L1D113DOME | 5/9 Secondary reference Flexitallic Gasket Co Inc |
| D00L1D113D0ME | C/1 Advisory reference — outside the item-of-supply concept Flexitallic Us, Llc |
NSN 4730-01-004-2806 is a Restrictor Unit,fluid Flow, manufactured by Nicholson Steam Trap Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-004-2806 has 1 manufacturer part number on file: 1IN.150LBS.DFA-B60(0.113) (Nicholson Steam Trap Inc).
Key specifications for 1IN.150LBS.DFA-B60(0.113): Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Strainer Type and Quantity: 1 SCREEN; End Connection Component Type and Size for Which Designed: 1 IN. OD TUBE IN; End Connection Type: UNTHREADED FEMALE LOCATION NOT OTHERWISE SPECIFIED. 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.