The Spider,differential, cataloged under National Stock Number 2520-01-565-0593, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2520-01-565-0593 |
| Primary Part Number | 3278-Z-1118 |
| Item Name | Spider,differential |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3710586C1 | Nd Defense Llc (USA) |
| 3278-Z-1118 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| 216636-13 | Cadillac Gage Textron Inc. (USA) |
| Reference | Meaning |
|---|---|
| 216636 | 5/1 Secondary reference Cadillac Gage Textron Inc. |
| 3278-Z-1118 | 5/9 Secondary reference Meritor Industrial Products, Llc |
NSN 2520-01-565-0593 is a Spider,differential, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-565-0593 has 3 manufacturer part numbers on file: 3710586C1 (Nd Defense Llc), 3278-Z-1118 (Meritor Heavy Vehicle Systems, Llc), 216636-13 (Cadillac Gage Textron Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-603-9097. Verify interchangeability with system specifications before substitution.
Key specifications for 3278-Z-1118: Part Name Assigned by Controlling Agency: GEAR,SPIDER ASM,WHEEL END (32; End Item Identification: 2320-01-437-6957, ARMORED SECURITY VEHICLE, MODEL XM 1117; MRAP - MRV; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS). 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.