PartsTable TECHNICAL DATA SHEET

NSN 1615-01-642-4696Government record, cited

Block Assembly, Rotary Wing Blade1615-01-642-4696

NSN 1615-01-642-4696 · NIIN 016424696 · Part number 25-8PT341-1A

Textron Aviation Inc · FSC 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components · FSG 16 — Aircraft Components and Accessories · CAGE 7EK50

Government record, cited

NSN 1615-01-642-4696 — this item is cataloged by the U.S. Government under National Stock Number 1615-01-642-4696. Manufacturer of record part number: 25-8PT341-1A.

Also searched as 1615-01-642-4696 · 1615016424696 · NIIN 016424696 · 01-642-4696 · FSC 1615 Helicopter Rotor Blades, Drive Mechanisms and Components · CAGE 7EK50 · 25-8PT341-1A

Nearby stock numbers ← 1615-01-641-2523 Transmission, Mechanical, Helicopt · 1615-01-642-5129 Seal, Metallic, Rotary Wing →

Features

Block Assembly,rotary Wing Blade — FSC 1615
1 manufacturer part number on file
Manufacturer of record: Textron Aviation Inc

Identification

NSN: 1615-01-642-4696
NIIN: 016424696
FSC: 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 25-8PT341-1A
Manufacturer: Textron Aviation Inc

General Description

The Block Assembly,rotary Wing Blade, cataloged under National Stock Number 1615-01-642-4696, 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 Textron Aviation 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts

Item Name	Block Assembly,rotary Wing Blade
FSC / FSG	1615 — Helicopter Rotor Blades, Drive Mechanisms and Components (FSG 16)
Manufacturers	Textron Aviation Inc (CAGE 7EK50)

Technical Specifications

Parameter	Value
NSN	1615-01-642-4696
Primary Part Number	25-8PT341-1A
Item Name	Block Assembly,rotary Wing Blade
FSC / FSG	1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components
Manufacturer	Textron Aviation Inc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
25-8PT341-1A PRIMARY	Textron Aviation Inc (USA)

Reference documents

Reference	Meaning
25-8PT341-1A	3/9 Design control — primary reference Beechcraft Corporation Dba Textron Aviation

No interchangeability data on file.

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 1615-01-642-4696?

NSN 1615-01-642-4696 is a Block Assembly,rotary Wing Blade, manufactured by Textron Aviation Inc, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.

What part numbers are listed for NSN 1615-01-642-4696?

NSN 1615-01-642-4696 has 1 manufacturer part number on file: 25-8PT341-1A (Textron Aviation Inc).

Is NSN 1615-01-642-4696 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 1615-01-642-4696?

NSN 1615-01-642-4696 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.

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