NSN 2520-01-077-2786 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-077-2786. Manufacturer of record part number: 9N1878.
Also searched as2520-01-077-2786 ·
2520010772786 ·
NIIN 010772786 ·
01-077-2786 ·
FSC 2520 Vehicular Power Transmission Components · CAGE 11083 · 9N1878
General Characteristics Item Description: STEEL;3.310 IN. OD; 1.680 IN. THK IN
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 2520-01-077-2786
NIIN: 010772786
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 9N1878
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Sleeve,clutch, cataloged under National Stock Number 2520-01-077-2786, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2520-01-077-2786
Primary Part Number
9N1878
Item Name
Sleeve,clutch
FSC / FSG
2520 / 25 — Vehicular Power Transmission Components
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
General Characteristics Item Description
STEEL;3.310 IN. OD; 1.680 IN. THK IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
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 2520-01-077-2786?
NSN 2520-01-077-2786 is a Sleeve,clutch, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
What part numbers are listed for NSN 2520-01-077-2786?
NSN 2520-01-077-2786 has 1 manufacturer part number on file: 9N1878 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 9N1878?
Key specifications for 9N1878: General Characteristics Item Description: STEEL;3.310 IN. OD; 1.680 IN. THK IN; End Item Identification: 2320010284395. 1 specification is documented in the U.S. Government catalog.
Is NSN 2520-01-077-2786 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.