PartsTable TECHNICAL DATA SHEET

NSN 5120-01-705-5134Government record, cited

Key Set, Socket Head Screw5120-01-705-5134

NSN 5120-01-705-5134 · NIIN 017055134 · Part number J4991

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

Government record, cited

NSN 5120-01-705-5134 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-705-5134. Manufacturer of record part number: J4991.

Also searched as 5120-01-705-5134 · 5120017055134 · NIIN 017055134 · 01-705-5134 · FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 1CV05 · J4991 · 3R805 · B18.3

Nearby stock numbers ← 5120-01-705-4879 Crimping Tool, Terminal, Hand · 5120-01-705-5154 Inserter, Screw Thread Insert →

Features

Key Set,socket Head Screw — FSC 5120
Key Characteristic: CONTAINS HEX KEY SIZES 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 INCH IN
Features Provided: LONG SERIES AND FOLD-UP TYPE
Key Quantity: 8
Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface Treatment: OXIDE
Material: STEEL
2 manufacturer part numbers on file

Identification

NSN: 5120-01-705-5134
NIIN: 017055134
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools
Primary part number: J4991
Manufacturer: The Stanley Works Dba Stanley Proto

General Description

The Key Set,socket Head Screw, cataloged under National Stock Number 5120-01-705-5134, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Technical Specifications

Parameter	Value
NSN	5120-01-705-5134
Primary Part Number	J4991
Item Name	Key Set,socket Head Screw
FSC / FSG	5120 / 51 — Hand Tools, Nonedged, Nonpowered
Manufacturer	The Stanley Works Dba Stanley Proto
Status	ACTIVE
Key Characteristic	CONTAINS HEX KEY SIZES 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 INCH IN
Features Provided	LONG SERIES AND FOLD-UP TYPE
Key Quantity	8
Specification/standard Data	05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface Treatment	OXIDE
Material	STEEL

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
J4991 PRIMARY	The Stanley Works Dba Stanley Proto (USA)
3R805	W.w. Grainger, Inc. Div Government Sales Division (USA)

Reference documents

Reference	Meaning
B18.3	3/1 Design control — primary reference The American Society of Mechanical Engineers

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 5120-01-705-5134?

NSN 5120-01-705-5134 is a Key Set,socket Head Screw, 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 5120-01-705-5134?

NSN 5120-01-705-5134 has 2 manufacturer part numbers on file: J4991 (The Stanley Works Dba Stanley Proto), 3R805 (W.w. Grainger, Inc. Div Government Sales Division).

What are the specifications of J4991?

Key specifications for J4991: Key Characteristic: CONTAINS HEX KEY SIZES 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 INCH IN; Features Provided: LONG SERIES AND FOLD-UP TYPE; Key Quantity: 8; Specification/standard Data: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 6 specifications are documented in the U.S. Government catalog.

Is NSN 5120-01-705-5134 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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