FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
General Description
The Modulator,transmission, cataloged under National Stock Number 2520-01-554-3404, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2520-01-554-3404
Item Name
Modulator,transmission
FSC / FSG
2520 / 25 — Vehicular Power Transmission Components
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL B — Remove Demilitarization Key Points
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
542726
3/9Design control — primary reference
Sierra Detroit Diesel Allison Dba Stewart & Stevenson
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.
2520-00-000-3976
2520-00-000-3976 · Item name not on file
2520-00-000-8852
2520-00-000-8852 · Item name not on file
2520-00-000-9292
2520-00-000-9292 · Item name not on file
2520-00-001-0011
2520-00-001-0011 · Item name not on file
2520-00-001-3397
2520-00-001-3397 · Item name not on file
2520-00-001-3425
2520-00-001-3425 · Item name not on file
2520-00-001-3440
ROLLER,CENTER
2520-00-001-3441
2520-00-001-3441 · Item name not on file
Frequently Asked Questions
What is NSN 2520-01-554-3404?
NSN 2520-01-554-3404 is a Modulator,transmission, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
What are the specifications of 2520-01-554-3404?
Key specifications for 2520-01-554-3404: Part Name Assigned by Controlling Agency: TRANSMISSION MODULATOR; End Item Identification: 2420-01-538-8287; TRACTOR, WHEELED HIGH SPEED. 0 specifications are documented in the U.S. Government catalog.
Is NSN 2520-01-554-3404 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.
What is the DEMIL code for NSN 2520-01-554-3404?
NSN 2520-01-554-3404 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.