The Plug,pipe, cataloged under National Stock Number 4730-01-138-1968, 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 11 specifications, 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-138-1968 |
| Primary Part Number | 1-4HHP-SS |
| Item Name | Plug,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Head Type | SOLID |
| Nominal Pipe Size for Which Designed | 0.250 INCHES IN |
| Connection Style | PLAIN |
| Drive End Style | RECESSED HEXAGON |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Nominal Thread Size | 0.250 INCHES EXTERNAL IN |
| Specification/standard Data | 81343-J531 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 5A FIGURE A |
| Body Type | SOLID |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | NPTF EXTERNAL |
| 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 |
|---|---|
| 1-4HHP-SS PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| SAE J531 4 130109NS PRIMARY | Sae International Dba Sae International (USA) |
| 113554 | Varo Llc (USA) |
| Reference | Meaning |
|---|---|
| 4-130109NS | 5/9 Secondary reference U.S. Government activity |
| 1-4HHP-SS | 5/9 Secondary reference U.S. Government activity |
| 114HHPSS | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| J531 | 5/9 Secondary reference Sae International Dba Sae International |
| 4-130109NS | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-J531 | 3/1 Design control — primary reference Sae International Dba Sae International |
| J531 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-138-1968 is a Plug,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 4730-01-138-1968 has 3 manufacturer part numbers on file: 1-4HHP-SS (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), SAE J531 4 130109NS (Sae International Dba Sae International), 113554 (Varo Llc).
Key specifications for 1-4HHP-SS: Head Type: SOLID; Nominal Pipe Size for Which Designed: 0.250 INCHES IN; Connection Style: PLAIN; Drive End Style: RECESSED HEXAGON. 11 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.