The Track Assy,aft Stak, cataloged under National Stock Number 3990-01-508-3046, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3990-01-508-3046 |
| Primary Part Number | 596-7409708-A3 |
| Item Name | Track Assy,aft Stak |
| FSC / FSG | 3990 / 39 — Miscellaneous Materials Handling Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Accessory Components and Quantity | TRACK 1; LEG 2; BACKING BAR 1; GIB 1; SLOTTED GIB 1; SHIELD 4; STOP BLOCK 1; BALL SCREW SPACER 1; BALL SCREW ASSY 1; BALL SCREW HOUSING 2; FLANGED BEARING 2; RETAINER 1; BALL ADAPTER 1; INDICATOR BASE 1; INDICATOR POINTER 1; SLIDER BLOCK 1; LOCKING THRUST RING 1; LOCK DIAL 1; LOCK PLATE 1; KNURLED KNOB 1; LOCK SPINDLE 1; MISC. SCREWS, NUTS, WASHERS, ETC. |
| Material | ALUMINUM AND COPPER ALLOY AND NICKEL ALLOY AND STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 596-7409708-A3 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 596-7409708 | D/9 Drawing number reference only Naval Sea Systems Command |
| B831-4400-A3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3990-01-508-3046 is a Track Assy,aft Stak, manufactured by Naval Sea Systems Command, classified under FSC 3990, Miscellaneous Materials Handling Equipment. Status: active.
NSN 3990-01-508-3046 has 1 manufacturer part number on file: 596-7409708-A3 (Naval Sea Systems Command).
Key specifications for 596-7409708-A3: Overall Height: 9.250 INCHES NOMINAL IN; Overall Length: 59.600 INCHES NOMINAL IN; Overall Width: 24.500 INCHES NOMINAL IN; Accessory Components and Quantity: TRACK 1; LEG 2; BACKING BAR 1; GIB 1; SLOTTED GIB 1; SHIELD 4; STOP BLOCK 1; BALL SCREW SPACER 1; BALL SCREW ASSY 1; BALL SCREW HOUSING 2; FLANGED BEARING 2; RETAINER 1; BALL ADAPTER 1; INDICATOR BASE 1; INDICATOR POINTER 1; SLIDER BLOCK 1; LOCKING THRUST RING 1; LOCK DIAL 1; LOCK PLATE 1; KNURLED KNOB 1; LOCK SPINDLE 1; MISC. SCREWS, NUTS, WASHERS, ETC.. 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.