Extension, Socket Wrench5120-01-335-2129

NSN 5120-01-335-2129 · NIIN 013352129

FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools

Government record, cited

Also searched as 5120-01-335-2129 · 5120013352129 · NIIN 013352129 · 01-335-2129 · FSC 5120 Hand Tools, Nonedged, Nonpowered · 72-1248 · 72-1248

Nearby stock numbers ← 5120-01-335-2127 · 5120-01-335-2131 Extension, Socket Wrench →

Features

Extension,socket Wrench — FSC 5120
Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
Style Designator: RIGID
Features Provided: MANUAL TOOL
Drive End Shape: SQUARE FIRST END INTERNAL
Drive End Shape: SQUARE SECOND END EXTERNAL
Surface Treatment: CHROMIUM OVERALL
Material: STEEL OVERALL

Identification

NSN: 5120-01-335-2129
NIIN: 013352129
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools

General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-335-2129, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5120-01-335-2129
Item Name	Extension,socket Wrench
FSC / FSG	5120 / 51 — Hand Tools, Nonedged, Nonpowered
Status	ACTIVE
Drive Surface Size	0.375 INCHES NOMINAL BOTH ENDS IN
Style Designator	RIGID
Features Provided	MANUAL TOOL
Drive End Shape	SQUARE FIRST END INTERNAL
Drive End Shape	SQUARE SECOND 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
72-1248	5/9 Secondary reference Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.
72-1248	3/9 Design control — primary reference Apex Tool Group, Llc Dba Nicholson

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 5120-01-335-2129?

NSN 5120-01-335-2129 is a Extension,socket Wrench, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.

What are the specifications of 5120-01-335-2129?

Key specifications for 5120-01-335-2129: Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN; Style Designator: RIGID; Overall Length: 1.500 INCHES NOMINAL IN; Features Provided: MANUAL TOOL. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5120-01-335-2129 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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