The Nut,union, cataloged under National Stock Number 4730-01-248-2426, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-248-2426 |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Thread Series | NGO |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | MIL-F-23509 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | LEFT-HAND |
| Nominal Thread Size | 0.830 INCHES IN |
| Specification/standard Data | 81349-MIL-I-45208 GOVERNMENT SPECIFICATION AND 96906-MIL-STD-129 GOVERNMENT STANDARD AND 81349-MIL-F-23509 GOVERNMENT SPECIFICATION |
| Nut Height | 0.953 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Quantity Per Inch | 14 |
| Material | NICKEL ALLOY OVERALL |
| Smallest Inside Diameter | 0.568 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | C |
| Reference | Meaning |
|---|---|
| 200-2439134,PC.16(MOD) | 3/1 Design control — primary reference U.S. Government activity |
| 215-5581021,PC 1-1 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4730-01-248-2426 is a Nut,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-248-2426: Thread Series: NGO; Criticality Code Justification: ZZZY; Material Document and Classification: MIL-F-23509 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: LEFT-HAND. 12 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.
NSN 4730-01-248-2426 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.