Adapter-Extension, Socket Wrench5120-01-384-4777

NSN 5120-01-384-4777 · NIIN 013844777 · Part number 65720-35000-115

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 78286

Government record, cited

NSN 5120-01-384-4777 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-384-4777. Manufacturer of record part number: 65720-35000-115.

Also searched as 5120-01-384-4777 · 5120013844777 · NIIN 013844777 · 01-384-4777 · FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 78286 · 65720-35000-115

Nearby stock numbers ← 5120-01-384-4750 Remover, Electrical Contact · 5120-01-384-5030 →

Features

Adapter-Extension,socket Wrench — FSC 5120
Drive Surface Size: 0.750 INCHES NOMINAL SECOND END IN
Drive Surface Size: 1.062 INCHES NOMINAL FIRST END IN
Drive End Shape: 12 POINT FIRST END INTERNAL
Drive End Shape: 8 POINT SECOND END INTERNAL
1 manufacturer part number on file
Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

Identification

NSN: 5120-01-384-4777
NIIN: 013844777
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools
Primary part number: 65720-35000-115
Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp

General Description

The Adapter-Extension,socket Wrench, cataloged under National Stock Number 5120-01-384-4777, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5120-01-384-4777
Primary Part Number	65720-35000-115
Item Name	Adapter-Extension,socket Wrench
FSC / FSG	5120 / 51 — Hand Tools, Nonedged, Nonpowered
Manufacturer	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Status	ACTIVE
Drive Surface Size	0.750 INCHES NOMINAL SECOND END IN
Drive Surface Size	1.062 INCHES NOMINAL FIRST END IN
Drive End Shape	12 POINT FIRST END INTERNAL
Drive End Shape	8 POINT SECOND END INTERNAL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
65720-35000-115 PRIMARY	Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)

No interchangeability data on file.

Other items in FSC 5120 — Hand Tools, Nonedged, Nonpowered

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

5120-00-001-2642

ADAPTER,TORQUE WRENCH

5120-00-001-2644

ADAPTER,TORQUE WRENCH

5120-00-001-2650

INSERTER,SEAL

5120-00-001-2651

5120-00-001-2651 · Item name not on file

5120-00-001-2652

INSTALLING TOOL,SHAFT

5120-00-001-2653

REMOVER,PREFORMED PACKING

5120-00-001-2654

REMOVER,PREFORMED PACKING

5120-00-001-2655

SOCKET,WRENCH,FACE SPANNER

Frequently Asked Questions

What is NSN 5120-01-384-4777?

NSN 5120-01-384-4777 is a Adapter-Extension,socket Wrench, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What part numbers are listed for NSN 5120-01-384-4777?

NSN 5120-01-384-4777 has 1 manufacturer part number on file: 65720-35000-115 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What are the specifications of 65720-35000-115?

Key specifications for 65720-35000-115: Drive Surface Size: 0.750 INCHES NOMINAL SECOND END IN; Drive Surface Size: 1.062 INCHES NOMINAL FIRST END IN; Overall Length: 5.000 INCHES NOMINAL IN; Drive End Shape: 12 POINT FIRST END INTERNAL. 4 specifications are documented in the U.S. Government catalog.

Is NSN 5120-01-384-4777 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.

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