The Packing Nut, cataloged under National Stock Number 4730-00-366-8881, 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 Ambac International Corporation Div Ambac International. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-366-8881 |
| Primary Part Number | NT7861 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ambac International Corporation Div Ambac International |
| Status | ACTIVE |
| Length to Shoulder | 1.050 INCHES NOMINAL IN |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Size | 3/4-16 |
| Screw Thread Series Designator | UNF |
| Thread Class | 2A A |
| Major Unthreaded Outside Diameter | 0.821 INCHES NOMINAL IN |
| Screw Thread Location | INTERNAL |
| Material | STEEL |
| Smallest Inside Diameter | 0.562 INCHES NOMINAL 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 |
|---|---|
| NT7861 PRIMARY | Ambac International Corporation Div Ambac International (USA) |
| Reference | Meaning |
|---|---|
| 59453712 | 5/9 Secondary reference Energy Services Group Div of Cooper Industries Inc |
| B0WMU14A1X | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
| WMU14A1X | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
| 59543712 | 5/9 Secondary reference Cooper Machinery Services Llc |
NSN 4730-00-366-8881 is a Packing Nut, manufactured by Ambac International Corporation Div Ambac International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-366-8881 has 1 manufacturer part number on file: NT7861 (Ambac International Corporation Div Ambac International).
Key specifications for NT7861: Length to Shoulder: 1.050 INCHES NOMINAL IN; Thread Length: 0.875 INCHES NOMINAL IN; Overall Length: 1.299 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 10 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.