The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-131-0729, 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 Atec Inc. Government technical data includes 29 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-131-0729 |
| Primary Part Number | 103-2026-1 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Atec Inc |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Nominal Thread Size | 0.125 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.190 INCHES NOMINAL IN |
| Third Diameter From Wrenching Feature | 0.660 INCHES NOMINAL IN |
| Body Style | RELIEVED |
| First End Thread Class | 2A A |
| First End Style Designator | FLARED |
| Length From Bearing Surface of Wrenching Feature to End of Third Diameter | 0.890 INCHES NOMINAL IN |
| Second Diameter From Wrenching Feature | 0.750 INCHES NOMINAL IN |
| Concentric Hole Depth | 3.850 INCHES NOMINAL IN |
| Wrenching Feature Height | 2.930 INCHES NOMINAL IN |
| Second End Thread Series Designator | NPTF |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 0.510 INCHES NOMINAL IN |
| First End Seat Angle | 45.0 DEGREES NOMINAL |
| Second End Style Designator | PLAIN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.200 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.390 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.125 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 3.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Second End Thread Length | 3.850 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL PIPE |
| First Diameter From Wrenching Feature | 0.660 INCHES NOMINAL 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 |
|---|---|
| 103-2026-1 PRIMARY | Atec Inc (USA) |
NSN 4730-01-131-0729 is a Bolt,fluid Passage, manufactured by Atec Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-131-0729 has 1 manufacturer part number on file: 103-2026-1 (Atec Inc).
Key specifications for 103-2026-1: First End Thread Series Designator: UNF; Width Across Flats: 0.875 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Second End Nominal Thread Size: 0.125 INCHES IN. 29 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.