The Coupling,pipe, cataloged under National Stock Number 4730-00-307-6557, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-307-6557 |
| Primary Part Number | 3/8X1/4-GG-SS |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 1.150 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | 66,AISI 316/SAE 30316 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Specification/standard Data | 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 39 FIGURE |
| Surface Treatment | PASSIVATE OVERALL |
| Media for Which Designed | AIR SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID FIRST RESPONSE |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | NPTF ALL ENDS |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 3/8X1/4HC | Ssp Fittings Corp (USA) |
| 3/8X1/4-GG-SS PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 4-6-140138S | Raytheon E-Systems, Inc (USA) |
| SAE J514-3 6-4 140138S PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 3/8X1/4-GG-SS | 5/9 Secondary reference U.S. Government activity |
| SAE J514 6-4 140138S | 5/9 Secondary reference Sae International Dba Sae International |
| J514 | 5/1 Secondary reference Sae International Dba Sae International |
| SAE-J514-3 | 3/1 Design control — primary reference Sae International Dba Sae International |
| J514 | 5/9 Secondary reference U.S. Government activity |
| 6-4-140138S | 5/9 Secondary reference Sae International Dba Sae International |
| 6-4-140138S | 3/9 Design control — primary reference U.S. Government activity |
| SAE-J514 | 5/9 Secondary reference Sae International Dba Sae International |
NSN 4730-00-307-6557 is a Coupling,pipe, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-307-6557 has 4 manufacturer part numbers on file: 3/8X1/4HC (Ssp Fittings Corp), 3/8X1/4-GG-SS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 4-6-140138S (Raytheon E-Systems, Inc), SAE J514-3 6-4 140138S (Sae International Dba Sae International).
Key specifications for 3/8X1/4-GG-SS: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.150 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Material Document and Classification: 66,AISI 316/SAE 30316 FED STD SINGLE MATERIAL RESPONSE OVERALL. 14 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.