The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-173-1223, 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 Lake Shore Systems, Inc.. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-173-1223 |
| Primary Part Number | 4648136 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Nominal Thread Size | 0.250 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.540 INCHES NOMINAL IN |
| Second End Thread Class | 3B |
| Body Style | PLAIN |
| First End Thread Class | 2A A |
| Cotter Pin Hole Diameter | 0.312 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Concentric Hole Depth | 1.802 INCHES NOMINAL IN |
| Second End Seat Angle | 90.0 DEGREES NOMINAL |
| Wrenching Feature Height | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.540 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | HIGH PRESSURE FLARE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 2.690 INCHES MINIMUM AND 2.700 INCHES MAXIMUM IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.125 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.282 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.125 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 1.345 INCHES NOMINAL IN |
| Material | STEEL COMP 316 |
| Second End Thread Length | 0.312 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL TUBE |
| 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 |
|---|---|
| 4648136 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4648136 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-173-1223 is a Bolt,fluid Passage, manufactured by Lake Shore Systems, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-173-1223 has 1 manufacturer part number on file: 4648136 (Lake Shore Systems, Inc.).
Key specifications for 4648136: First End Thread Series Designator: UNF; Width Across Flats: 1.125 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Second End Nominal Thread Size: 0.250 INCHES IN. 27 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.