The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-261-2522, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-261-2522 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE |
| Body Style | PLAIN |
| First End Style Designator | PLAIN |
| Wrenching Feature Style | HEXAGON |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.859 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Surface Treatment | CADMIUM |
| First Radial Fluid Hole Diameter | 0.125 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.180 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 |
| Reference | Meaning |
|---|---|
| 787AS815 | 5/9 Secondary reference U.S. Government activity |
| 787AS815 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 787AS815 | 3/9 Design control — primary reference The Boeing Company Div Defense |
NSN 4730-01-261-2522 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-357-7115. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-261-2522: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE; Body Style: PLAIN; First End Style Designator: PLAIN; Wrenching Feature Style: HEXAGON. 9 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.