NSN 5120-01-666-8645 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-666-8645. Manufacturer of record part number: WO-21X22.
Also searched as5120-01-666-8645 ·
5120016668645 ·
NIIN 016668645 ·
01-666-8645 ·
FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 01DJ4 · WO-21X22
Nearby stock numbers← 5120-01-666-8394 Inserter and Remover, Bearing and
·
5120-01-666-8649 Wrench, Open End →
Features
Wrench,open End — FSC 5120
Large End Head Angle: 15.0 DEGREES NOMINAL
Small End Head Angle: 15.0 DEGREES NOMINAL
Style Designator: DOUBLE HEAD
Opening Width: 21.0 MILLIMETERS MINIMUM AND 22.0 MILLIMETERS MAXIMUM MM
Material: STEEL CORROSION RESISTING OVERALL
1 manufacturer part number on file
Manufacturer of record: Ampco Partners, Ltd. Dba Ampco Safety Tools
The Wrench,open End, cataloged under National Stock Number 5120-01-666-8645, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Ampco Partners, Ltd. Dba Ampco Safety Tools. 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
5120-01-666-8645
Primary Part Number
WO-21X22
Item Name
Wrench,open End
FSC / FSG
5120 / 51 — Hand Tools, Nonedged, Nonpowered
Manufacturer
Ampco Partners, Ltd. Dba Ampco Safety Tools
Status
ACTIVE
Large End Head Angle
15.0 DEGREES NOMINAL
Small End Head Angle
15.0 DEGREES NOMINAL
Style Designator
DOUBLE HEAD
Opening Width
21.0 MILLIMETERS MINIMUM AND 22.0 MILLIMETERS MAXIMUM MM
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 5120-01-666-8645?
NSN 5120-01-666-8645 is a Wrench,open End, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
What part numbers are listed for NSN 5120-01-666-8645?
NSN 5120-01-666-8645 has 1 manufacturer part number on file: WO-21X22 (Ampco Partners, Ltd. Dba Ampco Safety Tools).
What are the specifications of WO-21X22?
Key specifications for WO-21X22: Large End Head Angle: 15.0 DEGREES NOMINAL; Small End Head Angle: 15.0 DEGREES NOMINAL; Style Designator: DOUBLE HEAD; Opening Width: 21.0 MILLIMETERS MINIMUM AND 22.0 MILLIMETERS MAXIMUM MM. 5 specifications are documented in the U.S. Government catalog.
Is NSN 5120-01-666-8645 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.