The Insert,tube Fitting, cataloged under National Stock Number 4730-01-181-9598, 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 John Crane, Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-181-9598 |
| Primary Part Number | PACK4535001P658 |
| Item Name | Insert,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| Tube Inside Diameter for Which Designed | 0.750 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON |
| 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 |
|---|---|
| PACK4535001P658 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| PACK4535001P658 | C/1 Advisory reference — outside the item-of-supply concept Defense Maritime Solutions, Inc. |
| R-21375 | 5/9 Secondary reference John Crane, Inc |
| PACK4535001P658 | 3/9 Design control — primary reference Wartsila Lips Inc |
| CS-4730-SV-0729 | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| 4730PL1326131 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4730-01-181-9598 is a Insert,tube Fitting, manufactured by John Crane, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-181-9598 has 1 manufacturer part number on file: PACK4535001P658 (John Crane, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4710-01-258-7236. Verify interchangeability with system specifications before substitution.
Key specifications for PACK4535001P658: Tube Inside Diameter for Which Designed: 0.750 INCHES NOMINAL IN; Material: PLASTIC POLYAMIDE NYLON. 2 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.