PartsTable TECHNICAL DATA SHEET

NSN 5120-01-666-1010Government record, cited

Handle, Socket Wrench5120-01-666-1010

NSN 5120-01-666-1010 · NIIN 016661010 · Part number J5450XL

The Stanley Works Dba Stanley Proto · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 1CV05

Government record, cited

NSN 5120-01-666-1010 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-666-1010. Manufacturer of record part number: J5450XL.

Also searched as 5120-01-666-1010 · 5120016661010 · NIIN 016661010 · 01-666-1010 · FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 1CV05 · J5450XL

Nearby stock numbers ← 5120-01-666-0977 Wrench, Torque · 5120-01-666-1093 Socket, Socket Wrench →

Features

Handle,socket Wrench — FSC 5120
Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
Style Designator: RATCHET
Drive End Shape: SQUARE SINGLE END EXTERNAL
Surface Treatment: CHROMIUM OVERALL
Material: STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: The Stanley Works Dba Stanley Proto

Identification

NSN: 5120-01-666-1010
NIIN: 016661010
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools
Primary part number: J5450XL
Manufacturer: The Stanley Works Dba Stanley Proto

General Description

The Handle,socket Wrench, cataloged under National Stock Number 5120-01-666-1010, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 5 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	5120-01-666-1010
Primary Part Number	J5450XL
Item Name	Handle,socket Wrench
FSC / FSG	5120 / 51 — Hand Tools, Nonedged, Nonpowered
Manufacturer	The Stanley Works Dba Stanley Proto
Status	ACTIVE
Drive Surface Size	0.500 INCHES NOMINAL SINGLE END IN
Style Designator	RATCHET
Drive End Shape	SQUARE SINGLE END EXTERNAL
Surface Treatment	CHROMIUM OVERALL
Material	STEEL OVERALL

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
J5450XL PRIMARY	The Stanley Works Dba Stanley Proto (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 5120-01-666-1010?

NSN 5120-01-666-1010 is a Handle,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What part numbers are listed for NSN 5120-01-666-1010?

NSN 5120-01-666-1010 has 1 manufacturer part number on file: J5450XL (The Stanley Works Dba Stanley Proto).

What are the specifications of J5450XL?

Key specifications for J5450XL: Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Style Designator: RATCHET; Overall Length: 15.000 INCHES NOMINAL IN; Drive End Shape: SQUARE SINGLE END EXTERNAL. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5120-01-666-1010 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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