PartsTable TECHNICAL DATA SHEET

NSN 1560-01-231-0237Government record, cited

Lock Assembly, Blade Interlock1560-01-231-0237

NSN 1560-01-231-0237 · NIIN 012310237 · Part number A254A-2

Marathonnorco Aerospace, Inc. · FSC 1560 — Airframe Structural Components · FSG 15 — Aircraft and Airframe Components · CAGE 08844

Government record, cited

NSN 1560-01-231-0237 — this item is cataloged by the U.S. Government under National Stock Number 1560-01-231-0237. Manufacturer of record part number: A254A-2.

Also searched as 1560-01-231-0237 · 1560012310237 · NIIN 012310237 · 01-231-0237 · FSC 1560 Airframe Structural Components · CAGE 08844 · A254A-2

Nearby stock numbers ← 1560-01-231-0121 Fairing · 1560-01-231-0238 Lock Assembly, Blade Interlock →

Features

Lock Assembly,blade Interlock — FSC 1560
1 manufacturer part number on file
Manufacturer of record: Marathonnorco Aerospace, Inc.

Identification

NSN: 1560-01-231-0237
NIIN: 012310237
FSC: 1560 — Airframe Structural Components
FSG: 15 — Aircraft and Airframe Components
Primary part number: A254A-2
Manufacturer: Marathonnorco Aerospace, Inc.

General Description

The Lock Assembly,blade Interlock, cataloged under National Stock Number 1560-01-231-0237, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Marathonnorco Aerospace, Inc.. 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	Lock Assembly,blade Interlock
FSC / FSG	1560 — Airframe Structural Components (FSG 15)
Manufacturers	Marathonnorco Aerospace, Inc. (CAGE 08844)

Technical Specifications

Parameter	Value
NSN	1560-01-231-0237
Primary Part Number	A254A-2
Item Name	Lock Assembly,blade Interlock
FSC / FSG	1560 / 15 — Airframe Structural Components
Manufacturer	Marathonnorco Aerospace, Inc.
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL B — Remove Demilitarization Key Points
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
A254A-2 PRIMARY	Marathonnorco Aerospace, Inc. (USA)

No interchangeability data on file.

Other items in FSC 1560 — Airframe Structural Components

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

1560-00-000-0047

MODIFICATION KIT,AIRFRAME

1560-00-001-1849

GYRO BOX ASSEMBLY

1560-00-001-1850

RADOME

1560-00-001-1851

RADOME

1560-00-001-2368

PLATE,STRUCTURAL,AIRCRAFT

1560-00-001-2478

HINGE,LEADING EDGE

1560-00-001-2479

HINGE,LEADING EDGE

1560-00-001-2480

HINGE,LEADING EDGE

Frequently Asked Questions

What is NSN 1560-01-231-0237?

NSN 1560-01-231-0237 is a Lock Assembly,blade Interlock, manufactured by Marathonnorco Aerospace, Inc., classified under FSC 1560, Airframe Structural Components. Status: active.

What part numbers are listed for NSN 1560-01-231-0237?

NSN 1560-01-231-0237 has 1 manufacturer part number on file: A254A-2 (Marathonnorco Aerospace, Inc.).

Is NSN 1560-01-231-0237 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.

What is the DEMIL code for NSN 1560-01-231-0237?

NSN 1560-01-231-0237 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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