The Packing Nut, cataloged under National Stock Number 4730-01-057-7108, 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 Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-057-7108 |
| Primary Part Number | 42610A |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| Hole or Slot Quantity | 2 |
| Thread Length | 0.355 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 2.250-18 |
| Screw Thread Series Designator | UNS |
| Thread Class | 3B |
| Major Unthreaded Outside Diameter | 2.480 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Screw Thread Location | INTERNAL |
| Material | ALUMINUM ALLOY 2024 |
| Smallest Inside Diameter | 1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN |
| Hole Diameter | 0.135 INCHES MINIMUM AND 0.140 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 |
|---|---|
| 42610A PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
NSN 4730-01-057-7108 is a Packing Nut, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-057-7108 has 1 manufacturer part number on file: 42610A (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for 42610A: Hole or Slot Quantity: 2; Thread Length: 0.355 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Overall Length: 0.580 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN; Thread Direction: RIGHT-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.
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.