NSN 2520-01-437-6571 · NIIN 014376571 · Part number 1741AS156-1
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 2520 — Vehicular Power Transmission Components · FSG 25 — Vehicular Equipment Components · CAGE 30003
Government record, cited
NSN 2520-01-437-6571 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-437-6571. Manufacturer of record part number: 1741AS156-1.
Also searched as2520-01-437-6571 ·
2520014376571 ·
NIIN 014376571 ·
01-437-6571 ·
FSC 2520 Vehicular Power Transmission Components · CAGE 30003 · 1741AS156-1
Nearby stock numbers← 2520-01-437-6118 Shaft and Carrier Assembly, Trans
·
2520-01-437-6852 Turbine Wheel, Torque Converter →
Features
Flange,companion,vehicular Unive — FSC 2520
2 manufacturer part numbers on file
Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
NSN: 2520-01-437-6571
NIIN: 014376571
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 1741AS156-1
Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description
The Flange,companion,vehicular Unive, cataloged under National Stock Number 2520-01-437-6571, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
2520-01-437-6571
Primary Part Number
1741AS156-1
Item Name
Flange,companion,vehicular Unive
FSC / FSG
2520 / 25 — Vehicular Power Transmission Components
Manufacturer
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (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.
2520-00-000-3976
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 2520-01-437-6571?
NSN 2520-01-437-6571 is a Flange,companion,vehicular Unive, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
What part numbers are listed for NSN 2520-01-437-6571?
NSN 2520-01-437-6571 has 2 manufacturer part numbers on file: 1741AS156-1 (Lake Shore Systems, Inc.), 1741AS156-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
What are the specifications of 1741AS156-1?
Key specifications for 1741AS156-1: Overall Length: 3.620 INCHES NOMINAL IN. 0 specifications are documented in the U.S. Government catalog.
Is NSN 2520-01-437-6571 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.