The Coupling,tube, cataloged under National Stock Number 4730-01-668-3143, 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 Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 7 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 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 | 4730-01-668-3143 |
| Primary Part Number | 101197-841 |
| Item Name | Coupling,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| Nominal Width Across Flats | 2.25 INCHES FIRST END IN |
| Surface Treatment Document and Classification | ASTM-A-967 NITRIC 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Overall Length | 3.13 INCHES IN |
| Style Designator | RIGID W/OFFSET WRENCHING FACILITY |
| Material Document and Classification | ASTM-A-276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 304 OVERALL |
| 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 |
|---|---|
| 101197-841 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
NSN 4730-01-668-3143 is a Coupling,tube, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-668-3143 has 1 manufacturer part number on file: 101197-841 (Hydraulics International, Inc. Dba Hydraulics International Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-673-1710. Verify interchangeability with system specifications before substitution.
Key specifications for 101197-841: Nominal Width Across Flats: 2.25 INCHES FIRST END IN; Surface Treatment Document and Classification: ASTM-A-967 NITRIC 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Nominal Overall Length: 3.13 INCHES IN; Style Designator: RIGID W/OFFSET WRENCHING FACILITY. 7 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.