The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-005-3387, 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 Naval Group Site De Brest. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-005-3387 |
| Primary Part Number | EPA21A00-151 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Group Site De Brest |
| Status | ACTIVE |
| First End Thread Series Designator | UN |
| First End Thread Direction | RIGHT-HAND |
| First End Thread Class | 3A A |
| Cotter Pin Hole Diameter | 0.187 INCHES NOMINAL IN |
| First End Thread Quantity Per Inch | 16 |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| First End Thread Length | 0.625 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286,CLASS A,FORM 2 FED SPEC SINGLE MATERIAL RESPONSE |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Distance From Bolt End to Hole Center | 0.312 INCHES NOMINAL IN |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Material | NICKEL ALLOY |
| First End Nominal Thread Size | 2.000 INCHES 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 |
|---|---|
| EPA21A00-151 | Naval Group Site De Brest (FRA) |
| Reference | Meaning |
|---|---|
| 517732-2 | 3/2 Design control — primary reference U.S. Government activity |
| 517732-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-005-3387 is a Bolt,fluid Passage, manufactured by Naval Group Site De Brest, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-005-3387 has 1 manufacturer part number on file: EPA21A00-151 (Naval Group Site De Brest).
Key specifications for EPA21A00-151: First End Thread Series Designator: UN; First End Thread Direction: RIGHT-HAND; First End Thread Class: 3A A; Cotter Pin Hole Diameter: 0.187 INCHES NOMINAL IN. 13 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.