PartsTable TECHNICAL DATA SHEET

NSN 1680-01-252-0395Government record, cited

Block, Anti-Rotation1680-01-252-0395

NSN 1680-01-252-0395 · NIIN 012520395 · Part number RYLC 401

Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · FSC 1680 — Miscellaneous Aircraft Accessories and Components · FSG 16 — Aircraft Components and Accessories · CAGE 05624

Government record, cited

NSN 1680-01-252-0395 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-252-0395. Manufacturer of record part number: RYLC 401.

Also searched as 1680-01-252-0395 · 1680012520395 · NIIN 012520395 · 01-252-0395 · FSC 1680 Miscellaneous Aircraft Accessories and Components · CAGE 05624 · RYLC 401

Nearby stock numbers ← 1680-01-252-0383 Particle Separator · 1680-01-252-0425 Carpet, Aircraft →

Features

Block,anti-Rotation — FSC 1680
1 manufacturer part number on file
Manufacturer of record: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc

Identification

NSN: 1680-01-252-0395
NIIN: 012520395
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: RYLC 401
Manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc

General Description

The Block,anti-Rotation, cataloged under National Stock Number 1680-01-252-0395, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Block,anti-Rotation
FSC / FSG	1680 — Miscellaneous Aircraft Accessories and Components (FSG 16)
Manufacturers	Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (CAGE 05624)

Technical Specifications

Parameter	Value
NSN	1680-01-252-0395
Primary Part Number	RYLC 401
Item Name	Block,anti-Rotation
FSC / FSG	1680 / 16 — Miscellaneous Aircraft Accessories and Components
Manufacturer	Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL B — Remove Demilitarization Key Points
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
RYLC 401 PRIMARY	Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)

No interchangeability data on file.

Other items in FSC 1680 — Miscellaneous Aircraft Accessories and Components

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

1680-00-001-1736

DUCT ASSEMBLY,BRANCHED

1680-00-003-3721

1680-00-003-3721 · Item name not on file

1680-00-009-3782

PISTON,EJECTOR,INNER

1680-00-009-6180

1680-00-009-6180 · Item name not on file

1680-00-475-0002

TIP,RUBBER CONTROL

1680-00-696-6170

ADAPTER,SCREW END A

1680-00-867-7158

COVER,GEARCASE

1680-00-885-0923

KNOB ASSY,LANDING G

Frequently Asked Questions

What is NSN 1680-01-252-0395?

NSN 1680-01-252-0395 is a Block,anti-Rotation, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.

What part numbers are listed for NSN 1680-01-252-0395?

NSN 1680-01-252-0395 has 1 manufacturer part number on file: RYLC 401 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).

Is NSN 1680-01-252-0395 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 1680-01-252-0395?

NSN 1680-01-252-0395 has DEMIL Code B. 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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