NSN 1615-01-716-5225 · NIIN 017165225 · Part number 4508249B
Rtx Corporation Div Pratt & Whitney · FSC 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components · FSG 16 — Aircraft Components and Accessories · CAGE 55820
Government record, cited
NSN 1615-01-716-5225 — this item is cataloged by the U.S. Government under National Stock Number 1615-01-716-5225. Manufacturer of record part number: 4508249B.
Also searched as1615-01-716-5225 ·
1615017165225 ·
NIIN 017165225 ·
01-716-5225 ·
FSC 1615 Helicopter Rotor Blades, Drive Mechanisms and Components · CAGE 55820 · 4508249B
Manufacturer of record: Rtx Corporation Div Pratt & Whitney
Identification
NSN: 1615-01-716-5225
NIIN: 017165225
FSC: 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 4508249B
Manufacturer: Rtx Corporation Div Pratt & Whitney
General Description
The Rotor Assembly Unit, cataloged under National Stock Number 1615-01-716-5225, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Other items in FSC 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1615-00-001-1399
1615-00-001-1399 · Item name not on file
1615-00-001-1400
1615-00-001-1400 · Item name not on file
1615-00-001-1774
1615-00-001-1774 · Item name not on file
1615-00-001-2675
1615-00-001-2675 · Item name not on file
1615-00-001-6441
1615-00-001-6441 · Item name not on file
1615-00-001-6442
1615-00-001-6442 · Item name not on file
1615-00-003-1146
BOLT ASSEMBLY,ROTARY WING HEAD
1615-00-003-1147
1615-00-003-1147 · Item name not on file
Frequently Asked Questions
What is NSN 1615-01-716-5225?
NSN 1615-01-716-5225 is a Rotor Assembly Unit, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
What part numbers are listed for NSN 1615-01-716-5225?
NSN 1615-01-716-5225 has 1 manufacturer part number on file: 4508249B (Rtx Corporation Div Pratt & Whitney).
What are the specifications of 4508249B?
Key specifications for 4508249B: Part Name Assigned by Controlling Agency: ROTO ASSEMBLY; End Item Identification: CH-53K SIKORSKY HEAVY LIFT HELICOPTER. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1615-01-716-5225 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.
What is the DEMIL code for NSN 1615-01-716-5225?
NSN 1615-01-716-5225 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.