The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-507-2528, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-507-2528 |
| Primary Part Number | 6394969-1 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Second End Nominal Thread Size | 0.125 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 3.260 INCHES NOMINAL IN |
| Body Style | PLAIN |
| Cotter Pin Hole Diameter | 0.139 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN |
| Concentric Hole Depth | 1.620 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.120 INCHES NOMINAL IN |
| Second End Thread Series Designator | NPT |
| Wrenching Feature Style | ROUND |
| Material Document and Classification | ASTM B443 GRADE 1 ANNEALED (INCONEL 625) ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | PLAIN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 3.260 INCHES NOMINAL IN |
| First End Connection Type | THREADED INTERNAL PIPE |
| Concentric Hole Diameter | 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Distance From Bolt End to Hole Center | 0.312 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Distance From First Radial Hole Center to End of Bolt | 1.818 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Second End Thread Length | 0.187 INCHES NOMINAL IN |
| First Diameter From Wrenching Feature | 1.998 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Head Diameter | 2.690 INCHES MINIMUM AND 2.810 INCHES MAXIMUM 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 |
|---|---|
| 9395168 FIND 5 | Naval Sea Systems Command (USA) |
| 6394969-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| PL 6395168 | Naval Sea Systems Command (USA) |
| 581-6395168 FIND 5 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 9395168 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6394969 | D/9 Drawing number reference only Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 581-6395168 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-507-2528 is a Bolt,fluid Passage, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-507-2528 has 4 manufacturer part numbers on file: 9395168 FIND 5 (Naval Sea Systems Command), 6394969-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), PL 6395168 (Naval Sea Systems Command), 581-6395168 FIND 5 (Naval Sea Systems Command).
Key specifications for 6394969-1: Second End Nominal Thread Size: 0.125 INCHES IN; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 3.260 INCHES NOMINAL IN; Body Style: PLAIN; Cotter Pin Hole Diameter: 0.139 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN. 21 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.