NSN 2520-01-537-4700 — this item is cataloged by the U.S. Government under National Stock Number 2520-01-537-4700. Manufacturer of record part number: ASP-4BV.
Also searched as2520-01-537-4700 ·
2520015374700 ·
NIIN 015374700 ·
01-537-4700 ·
FSC 2520 Vehicular Power Transmission Components · CAGE 04049 · ASP-4BV · LS1008996 · BP04-40-8SS
FSC: 2520 — Vehicular Power Transmission Components
FSG: 25 — Vehicular Equipment Components
Primary part number: ASP-4BV
Manufacturer: Arrow Pneumatics Inc
General Description
The Breather, cataloged under National Stock Number 2520-01-537-4700, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Arrow Pneumatics Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Catalog Facts
Item Name
Breather
FSC / FSG
2520 — Vehicular Power Transmission Components (FSG 25)
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 2520-01-537-4700?
NSN 2520-01-537-4700 is a Breather, manufactured by Arrow Pneumatics Inc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
What part numbers are listed for NSN 2520-01-537-4700?
NSN 2520-01-537-4700 has 2 manufacturer part numbers on file: ASP-4BV (Arrow Pneumatics Inc), BP04-40-8SS (Fluid Line Products Inc).
Is NSN 2520-01-537-4700 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.