NSN 3990-01-503-6525 — this item is cataloged by the U.S. Government under National Stock Number 3990-01-503-6525. Manufacturer of record part number: 6623556.
The Harness Front Boom, cataloged under National Stock Number 3990-01-503-6525, is classified within Federal Supply Class 3990 (Miscellaneous Materials Handling Equipment) of the Materials Handling Equipment group. The manufacturer of record is Jlg Industries, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Other items in FSC 3990 — Miscellaneous Materials Handling Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3990-00-001-4312
ROLLER,MATERIAL HANDLING
3990-00-001-9423
ROLLER,MATERIAL HANDLING
3990-00-003-2244
3990-00-003-2244 · Item name not on file
3990-00-004-7515
3990-00-004-7515 · Item name not on file
3990-00-007-3775
BRAKE,FLOOR,WHEELED EQUIPMENT
3990-00-009-5447
3990-00-009-5447 · Item name not on file
3990-00-012-4033
3990-00-012-4033 · Item name not on file
3990-00-013-7540
3990-00-013-7540 · Item name not on file
Frequently Asked Questions
What is NSN 3990-01-503-6525?
NSN 3990-01-503-6525 is a Harness Front Boom, manufactured by Jlg Industries, Inc., classified under FSC 3990, Miscellaneous Materials Handling Equipment. Status: active.
What part numbers are listed for NSN 3990-01-503-6525?
NSN 3990-01-503-6525 has 1 manufacturer part number on file: 6623556 (Jlg Industries, Inc.).
What are the specifications of 6623556?
Key specifications for 6623556: End Item Identification: 3930-01-486-2151. 0 specifications are documented in the U.S. Government catalog.
Is NSN 3990-01-503-6525 hazardous material?
No hazard code in the DLA record (HMIC N). 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.