NSN 2520-01-149-3438 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-149-3438. Manufacturer of record part number: 6885155.
Also searched as2520-01-149-3438 ·
2520011493438 ·
NIIN 011493438 ·
01-149-3438 ·
FSC 2520 Vehicular Power Transmission Components · CAGE 73342 · 6885155
The Piston,fourth Clutch, cataloged under National Stock Number 2520-01-149-3438, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
2520-01-149-3438
Primary Part Number
6885155
Item Name
Piston,fourth Clutch
FSC / FSG
2520 / 25 — Vehicular Power Transmission Components
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 2520-01-149-3438?
NSN 2520-01-149-3438 is a Piston,fourth Clutch, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
What part numbers are listed for NSN 2520-01-149-3438?
NSN 2520-01-149-3438 has 1 manufacturer part number on file: 6885155 (Allison Transmission Inc Dba Allison Transmission, Inc).
What are the specifications of 6885155?
Key specifications for 6885155: General Characteristics Item Description: 0.777 0.787 IN.THICK IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 2520-01-149-3438 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.