The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-102-6677, 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. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-102-6677 |
| Primary Part Number | 1128LM40520-1 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| First End Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 1.227 INCHES NOMINAL IN |
| Body Style | SHOULDER |
| First End Thread Class | 3A A |
| First End Thread Quantity Per Inch | 28 |
| Second Diameter From Wrenching Feature | 0.260 INCHES NOMINAL IN |
| Concentric Hole Depth | 0.719 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.062 INCHES NOMINAL IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 1.490 INCHES NOMINAL IN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.688 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.125 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM |
| First Radial Fluid Hole Diameter | 0.047 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.644 INCHES NOMINAL IN |
| Material | STEEL |
| First Diameter From Wrenching Feature | 0.367 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.250 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 |
|---|---|
| 1128LM40520-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128LM40520-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 4730-00-102-6677 is a Bolt,fluid Passage, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-102-6677 has 1 manufacturer part number on file: 1128LM40520-1 (Northrop Grumman Systems Corporation).
Key specifications for 1128LM40520-1: First End Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF); Length From Bearing Surface of Wrenching Feature to End of First Diameter: 1.227 INCHES NOMINAL IN; Body Style: SHOULDER; First End Thread Class: 3A A. 18 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.