The Packing Nut, cataloged under National Stock Number 4730-01-144-3609, 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 Naval Inventory Control Point Mechanicsburg. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-144-3609 |
| Primary Part Number | 10270 ITEM 4L1 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material | STEEL COMP 303 |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 10270 ITEM 4L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2621-906-13 ITEM 35L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7383858-262190613-35L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-262190613-35L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 10203 ITEM 4L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550478-262190613-35L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-262190613-35L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| H547-0001-262190613-35 | 5/1 Secondary reference U.S. Government activity |
| 10203 ITEM 4 | 3/1 Design control — primary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| 10270 ITEM 4 | 5/1 Secondary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| G90434-2L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| G547-0002-262190613-35 | 5/1 Secondary reference U.S. Government activity |
| 2621-906-13 ITEM 35 | 5/1 Secondary reference U.S. Government activity |
| G90434-2 | 5/1 Secondary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| 7550478-262190613-35 | 5/1 Secondary reference Naval Sea Systems Command |
| 7383858-262190613-35 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4730-01-144-3609 is a Packing Nut, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-144-3609 has 7 manufacturer part numbers on file: 10270 ITEM 4L1 (Naval Inventory Control Point Mechanicsburg), 2621-906-13 ITEM 35L1 (Naval Inventory Control Point Mechanicsburg), 7383858-262190613-35L1 (Naval Inventory Control Point Mechanicsburg), G547-0002-262190613-35L1 (Naval Inventory Control Point Mechanicsburg), 10203 ITEM 4L1 (Naval Inventory Control Point Mechanicsburg) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-599-1241. Verify interchangeability with system specifications before substitution.
Key specifications for 10270 ITEM 4L1: Criticality Code Justification: ZZZY; Material: STEEL COMP 303; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 3 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.