The Pole Assy,loading, cataloged under National Stock Number 3990-01-504-0049, is classified within Federal Supply Class 3990 (Miscellaneous Materials Handling Equipment) of the Materials Handling Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3990-01-504-0049 |
| Primary Part Number | 596-7410488-A1 |
| Item Name | Pole Assy,loading |
| FSC / FSG | 3990 / 39 — Miscellaneous Materials Handling Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 4.880 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING AND NICKEL ALLOY |
| 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 |
|---|---|
| 596-7410488-A1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| B831-0210-A1 | 5/9 Secondary reference U.S. Government activity |
NSN 3990-01-504-0049 is a Pole Assy,loading, manufactured by Naval Sea Systems Command, classified under FSC 3990, Miscellaneous Materials Handling Equipment. Status: active.
NSN 3990-01-504-0049 has 1 manufacturer part number on file: 596-7410488-A1 (Naval Sea Systems Command).
Key specifications for 596-7410488-A1: Overall Diameter: 4.880 INCHES MAXIMUM IN; Overall Length: 28.200 INCHES NOMINAL IN; Special Features: CONSISTS OF 5 INCH, ROUND BAR OF CRES 304 MACHINED DOWN TO 2 INCH DIAMETER FOR MOST OF ITS LENGTH; 3.65 INCHES AT ONE END ARE MACHINED TO FORM A SOCKET FOR A HITCH BALL AND HAS A CRES 304 LOCKING HEAD ATTACHED WITH SCREW, WASHER & NUT AS WELL AS WITH A 0.062 INCH DIAMETER X 6.000 INCH CRES LANYARD; THE OTHER END HAS A NICUAL HITCH BALL IN; Part Name Assigned by Controlling Agency: CARGO BAY LOADING POLE ASSY. 2 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.