The Nut Assembly,tube Coupling, cataloged under National Stock Number 4730-01-351-6115, 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 Sps Technologies, Llc Dba Airdrome Precision Components. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-351-6115 |
| Primary Part Number | AP421PP-06-028 |
| Item Name | Nut Assembly,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sps Technologies, Llc Dba Airdrome Precision Components |
| Status | ACTIVE |
| Style Designator | NUT ASSEMBLY |
| Thread Size | 9/16-20 |
| Screw Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) |
| Thread Class | 3B |
| Material | STEEL COMP 630 |
| 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 |
|---|---|
| AP421PP-06-028 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| R44275P-06-28 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| Reference | Meaning |
|---|---|
| 525-655-9031 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-351-6115 is a Nut Assembly,tube Coupling, manufactured by Sps Technologies, Llc Dba Airdrome Precision Components, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-351-6115 has 2 manufacturer part numbers on file: AP421PP-06-028 (Sps Technologies, Llc Dba Airdrome Precision Components), R44275P-06-28 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division).
Key specifications for AP421PP-06-028: Style Designator: NUT ASSEMBLY; Overall Length: 0.841 INCHES NOMINAL IN; Thread Size: 9/16-20; Screw Thread Series Designator: UNIFIED NATIONAL JOINT (UNJ). 5 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.