The Packing Nut, cataloged under National Stock Number 4730-00-238-5594, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-238-5594 |
| Primary Part Number | 10876461 |
| Item Name | Packing Nut |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Length to Shoulder | 1.125 INCHES NOMINAL IN |
| Hole or Slot Quantity | 8 |
| Largest Inside Diameter | 2.895 INCHES NOMINAL IN |
| Thread Length | 0.755 INCHES NOMINAL IN |
| Style Designator | ROUND, EXTERNAL THREAD, INVERTED FLARE |
| Material Document and Classification | FED STD 66, COMP 1115 FED STD 1ST MATERIAL RESPONSE OR FED STD 66, COMP 1120 FED STD 2ND MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 3.375-12 |
| Screw Thread Series Designator | UN |
| Thread Class | 2A A |
| Major Unthreaded Outside Diameter | 4.000 INCHES NOMINAL IN |
| Screw Thread Location | EXTERNAL |
| Material | STEEL COMP 1115 AND STEEL COMP 1120 |
| Slot Width | 0.375 INCHES NOMINAL IN |
| Smallest Inside Diameter | 2.531 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 |
|---|---|
| 2046085 | Garwood/feller Inc Garwood Winch Div (USA) |
| 10876461 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 4730002385594 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 4730002385594 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 4730-00-238-5594 is a Packing Nut, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-238-5594 has 2 manufacturer part numbers on file: 2046085 (Garwood/feller Inc Garwood Winch Div), 10876461 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 4310-00-753-0636. Verify interchangeability with system specifications before substitution.
Key specifications for 10876461: Length to Shoulder: 1.125 INCHES NOMINAL IN; Hole or Slot Quantity: 8; Largest Inside Diameter: 2.895 INCHES NOMINAL IN; Thread Length: 0.755 INCHES NOMINAL IN. 16 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.