The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-545-1748, 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 American Precision Gear Company Dba American Precision Gear Co Div Same. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-545-1748 |
| Primary Part Number | 5451748 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | American Precision Gear Company Dba American Precision Gear Co Div Same |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| First End Thread Direction | RIGHT-HAND |
| Second End Nominal Thread Size | 0.375 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 2.162 INCHES NOMINAL IN |
| Second End Thread Class | 2B |
| Body Style | PLAIN |
| Distance From Centerline to Flat | 0.530 INCHES NOMINAL IN |
| First End Thread Class | 2A A |
| First End Style Designator | PLAIN |
| Concentric Hole Depth | 1.866 INCHES NOMINAL IN |
| Second End Seat Angle | 12.0 DEGREES NOMINAL |
| Wrenching Feature Height | 0.174 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.484 INCHES NOMINAL IN |
| Wrenching Feature Style | ROUND WITH WRENCH FLATS |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | HIGH PRESSURE FLARE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 3.452 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.344 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.122 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 2.664 INCHES NOMINAL IN |
| Material | STEEL |
| Second Radial Fluid Hole Diameter | 0.506 INCHES NOMINAL IN |
| Distance From Second Radial Hole Center to End of Bolt | 1.760 INCHES NOMINAL IN |
| Second End Thread Length | 0.600 INCHES NOMINAL IN |
| Second End Connection Type | THREADED INTERNAL TUBE |
| First Diameter From Wrenching Feature | 0.876 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.625 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 |
|---|---|
| 5451748 PRIMARY | American Precision Gear Company Dba American Precision Gear Co Div Same (USA) |
| Reference | Meaning |
|---|---|
| 66011 | 5/9 Secondary reference L3harris Technologies, Inc Div Space & Airborne Systems |
NSN 4730-00-545-1748 is a Bolt,fluid Passage, manufactured by American Precision Gear Company Dba American Precision Gear Co Div Same, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-545-1748 has 1 manufacturer part number on file: 5451748 (American Precision Gear Company Dba American Precision Gear Co Div Same).
2 possible matches (shared part number, not a government interchangeability claim): 5995-01-013-6094, 8120-01-626-0422. Verify interchangeability with system specifications before substitution.
Key specifications for 5451748: First End Thread Series Designator: UNF; First End Thread Direction: RIGHT-HAND; Second End Nominal Thread Size: 0.375 INCHES IN; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 2.162 INCHES NOMINAL 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.