The Packing Nut, cataloged under National Stock Number 4730-01-070-0663, 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 Engineered Controls International, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-070-0663 |
| Primary Part Number | 970W-1 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Engineered Controls International, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Thread Length | 0.531 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN |
| Style Designator | HEXAGON, EXTERNAL THREAD, BOSS |
| Thread Pitch Diameters | +0.9100 TO 0.9136 INCHES IN |
| Thread Direction | LEFT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 0.960-14 |
| Screw Thread Series Designator | NGO |
| Screw Thread Location | EXTERNAL |
| Material | COPPER ALLOY |
| Smallest Inside Diameter | 0.547 INCHES MINIMUM AND 0.567 INCHES MAXIMUM 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 |
|---|---|
| 970W-1 PRIMARY | Engineered Controls International, Llc (USA) |
| Reference | Meaning |
|---|---|
| 970W-1 | 3/9 Design control — primary reference Rego Co a Marmon Group Co |
NSN 4730-01-070-0663 is a Packing Nut, manufactured by Engineered Controls International, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-070-0663 has 1 manufacturer part number on file: 970W-1 (Engineered Controls International, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-122-6985. Verify interchangeability with system specifications before substitution.
Key specifications for 970W-1: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Length: 0.531 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN; Style Designator: HEXAGON, EXTERNAL THREAD, BOSS; Thread Pitch Diameters: +0.9100 TO 0.9136 INCHES IN. 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.