NSN 5120-01-657-0342 · NIIN 016570342 · Part number J4944CF
The Stanley Works Dba Stanley Proto · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 1CV05
Government record, cited
NSN 5120-01-657-0342 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-657-0342. Manufacturer of record part number: J4944CF.
Also searched as5120-01-657-0342 ·
5120016570342 ·
NIIN 016570342 ·
01-657-0342 ·
FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 1CV05 · J4944CF
Nearby stock numbers← 5120-01-657-0341 Wrench, Open End
·
5120-01-657-0344 Crowfoot Attachment, Socket Wrenc →
Features
Crowfoot Attachment,socket Wrenc — FSC 5120
Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN
Style Designator: OPEN END
Wrenching Surface Shape: OVAL SINGLE END INTERNAL
Drive End Shape: SQUARE SINGLE END INTERNAL
Surface Treatment: CHROMIUM OVERALL
Material: STEEL OVERALL
Identification
NSN: 5120-01-657-0342
NIIN: 016570342
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools
Primary part number: J4944CF
Manufacturer: The Stanley Works Dba Stanley Proto
General Description
The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-657-0342, 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 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
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 5120-01-657-0342?
NSN 5120-01-657-0342 is a Crowfoot Attachment,socket Wrenc, 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 5120-01-657-0342?
NSN 5120-01-657-0342 has 2 manufacturer part numbers on file: J4944CF (Henchman Group Pty Ltd the Trustee for Henchman Unit Trust), J4944CF (The Stanley Works Dba Stanley Proto).
What are the specifications of J4944CF?
Key specifications for J4944CF: Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN; Style Designator: OPEN END; Overall Length: 2.500 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5120-01-657-0342 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.