The Nut,tube Coupling, cataloged under National Stock Number 4730-01-153-1899, 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 Nelson Aero Space, Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-153-1899 |
| Primary Part Number | NA500004-16LJ |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Nelson Aero Space, Inc. |
| Status | ACTIVE |
| Length to Shoulder | 0.962 INCHES NOMINAL IN |
| Width Across Flats | 1.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | T10 LUBE 460 MFR REF 1ST TREATMENT RESPONSE THREADS |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Material Document and Classification | MIL-F-5509 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.312 INCHES IN |
| Nut Height | 1.131 INCHES NOMINAL IN |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 304 OVERALL |
| Smallest Inside Diameter | 1.089 INCHES NOMINAL IN |
| Nominal Tube Outside Diameter | 1.000 INCHES IN |
| 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 |
|---|---|
| NA500004-16LJ | Nelson Aero Space, Inc. (USA) |
| AP728L16J | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| Reference | Meaning |
|---|---|
| 90-078-L16J | 3/2 Design control — primary reference U.S. Government activity |
| 40561-16LJ | 5/9 Secondary reference Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp |
NSN 4730-01-153-1899 is a Nut,tube Coupling, manufactured by Nelson Aero Space, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-153-1899 has 2 manufacturer part numbers on file: NA500004-16LJ (Nelson Aero Space, Inc.), AP728L16J (Sps Technologies, Llc Dba Airdrome Precision Components).
Key specifications for NA500004-16LJ: Length to Shoulder: 0.962 INCHES NOMINAL IN; Width Across Flats: 1.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: T10 LUBE 460 MFR REF 1ST TREATMENT RESPONSE THREADS; Thread Series: UNIFIED NATIONAL JOINT (UNJ). 15 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.