PartsTable TECHNICAL DATA SHEET
NSN 2520-01-577-6853Government record, cited

Spider, Differential2520-01-577-6853

NSN 2520-01-577-6853 · NIIN 015776853 · Part number TDA 3278W335
Daimler Truck North America Llc · FSC 2520 — Vehicular Power Transmission Components · FSG 25 — Vehicular Equipment Components · CAGE 64678
Government record, cited
NSN 2520-01-577-6853 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-577-6853. Manufacturer of record part number: TDA 3278W335.
Also searched as  2520-01-577-6853 · 2520015776853 · NIIN 015776853 · 01-577-6853 · FSC 2520 Vehicular Power Transmission Components · CAGE 64678 · TDA 3278W335
Nearby stock numbers  ·
Features
  • Spider,differential — FSC 2520
  • 1 manufacturer part number on file
  • Manufacturer of record: Daimler Truck North America Llc
Identification
  • NSN: 2520-01-577-6853
  • NIIN: 015776853
  • FSC: 2520 — Vehicular Power Transmission Components
  • FSG: 25 — Vehicular Equipment Components
  • Primary part number: TDA 3278W335
  • Manufacturer: Daimler Truck North America Llc
General Description

The Spider,differential, cataloged under National Stock Number 2520-01-577-6853, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Daimler Truck North America Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-01-577-6853
Primary Part NumberTDA 3278W335
Item NameSpider,differential
FSC / FSG2520 / 25 — Vehicular Power Transmission Components
ManufacturerDaimler Truck North America Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
TDA 3278W335 PRIMARY Daimler Truck North America Llc (USA)
No interchangeability data on file.
Other items in FSC 2520 — Vehicular Power Transmission Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2520-00-005-4937
CLUTCH PACKAGE
2520-00-006-6257
2520-00-006-6257 · Item name not on file
2520-00-008-9977
SPIDER,UNIVERSAL JOINT,VEHICULAR
2520-00-039-6567
SOCKET
2520-00-242-3316
CLUTCH ASSEMBLY,HUB
2520-00-358-3905
COVER
2520-00-366-7191
COLLAR,SHAFT LINKAGE
2520-00-708-6603
COVER CONTROL LEVER

Frequently Asked Questions

What is NSN 2520-01-577-6853?

NSN 2520-01-577-6853 is a Spider,differential, manufactured by Daimler Truck North America Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.

What part numbers are listed for NSN 2520-01-577-6853?

NSN 2520-01-577-6853 has 1 manufacturer part number on file: TDA 3278W335 (Daimler Truck North America Llc).

What are the specifications of TDA 3278W335?

Key specifications for TDA 3278W335: Part Name Assigned by Controlling Agency: SPIDER, DIFFERENTIAL, FINAL; End Item Identification: 2320-01-552-2922; TRUCK TRACTOR. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2520-01-577-6853 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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