The Spool,breakable,fueling at Sea, cataloged under National Stock Number 4730-00-237-8171, 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 Hydrasearch Company, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-237-8171 |
| Primary Part Number | CI-CPL/BS-NATO-A |
| Item Name | Spool,breakable,fueling at Sea |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON; 6 IN. NOM HOSE SIZE; 11 IN. OD OF FLANGE; 9-1/2 IN. DIA OF BOLT CIRCLE; 8 BOLT HOLES; 3/4 IN. DIA BOLTS REQUIRED; REGULAR BOLT HOLES; 11-1/2 IN. OD OF FLANGE; 10 IN. DIA OF BOLT CIRCLE; 6 BOLT SLOTS; 3/4 IN. BOLTS REQUIRED; OPEN BOLT SLOTS; 1,UNIT QTY; BOX 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 |
|---|---|
| CI-CPL/BS-NATO-A | Hydrasearch Company, Llc (USA) |
| FF5122-06 | Global Incorporated (USA) |
| H4730-237-8171 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| FSS5501-169238PC7 | 5/2 Secondary reference U.S. Government activity |
| SSS01-169238PC7 | 5/2 Secondary reference U.S. Government activity |
| FF5122-06 | 3/9 Design control — primary reference Danfoss Power Solutions II, Llc |
| FSS5501-169238 | 5/9 Secondary reference Nibco Inc |
| S5501-169238PC7 | 5/2 Secondary reference U.S. Government activity |
| H4730-237-8171 | C/1 Advisory reference — outside the item-of-supply concept United States Coast Guard Yard |
| C1-CPL/BS-NATO/A | 5/9 Secondary reference Hydrasearch Company, Llc |
NSN 4730-00-237-8171 is a Spool,breakable,fueling at Sea, manufactured by Hydrasearch Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-237-8171 has 3 manufacturer part numbers on file: CI-CPL/BS-NATO-A (Hydrasearch Company, Llc), FF5122-06 (Global Incorporated), H4730-237-8171 (Naval Inventory Control Point Mechanicsburg).
2 possible matches (shared part number, not a government interchangeability claim): 4730-00-778-3792, 4730-00-778-3793. Verify interchangeability with system specifications before substitution.
Key specifications for CI-CPL/BS-NATO-A: General Characteristics Item Description: CAST IRON; 6 IN. NOM HOSE SIZE; 11 IN. OD OF FLANGE; 9-1/2 IN. DIA OF BOLT CIRCLE; 8 BOLT HOLES; 3/4 IN. DIA BOLTS REQUIRED; REGULAR BOLT HOLES; 11-1/2 IN. OD OF FLANGE; 10 IN. DIA OF BOLT CIRCLE; 6 BOLT SLOTS; 3/4 IN. BOLTS REQUIRED; OPEN BOLT SLOTS; 1,UNIT QTY; BOX IN. 1 specification is 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.