PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JC484Wrench,spanner

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-8977 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-8977 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-8977. Primary manufacturer part number: JC484.
Features
  • Wrench,spanner — FSC 5120
  • Center to Center Distance Between Pins: 4.000 INCHES MAXIMUM IN
  • Specification/standard Data: 0U583-SAE AS6018 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 3 TYPE AND 2 CLASS
  • Material: STEEL OVERALL
  • Style Designator: ADJUSTABLE FACE PIN
  • Surface Treatment: OXIDE OVERALL
  • Pin Diameter: 0.312 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,spanner, cataloged under National Stock Number 5120-01-399-8977, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-399-8977
Primary Part NumberJC484
Item NameWrench,spanner
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
Center to Center Distance Between Pins4.000 INCHES MAXIMUM IN
Specification/standard Data0U583-SAE AS6018 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data3 TYPE AND 2 CLASS
MaterialSTEEL OVERALL
Style DesignatorADJUSTABLE FACE PIN
Surface TreatmentOXIDE OVERALL
Pin Diameter0.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-264-3777 INTERCHANGEABLE
Wrench,spanner
5120-00-293-0207 INTERCHANGEABLE
Wrench,spanner
5120-00-293-0798 INTERCHANGEABLE
Wrench,spanner
5120-00-395-6660CAS-1456 INTERCHANGEABLE
Wrench,spanner
Cnh Industrial America Llc Dba Cnh America
5120-00-561-08548284044 INTERCHANGEABLE
Wrench,spanner
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5120-00-561-08558284045 INTERCHANGEABLE
Wrench,spanner
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5120-00-595-89965120-00-595-8996 INTERCHANGEABLE
Wrench,spanner
A.w. Mack Manufacturing Co., Inc.
5120-00-595-9551 INTERCHANGEABLE
Pliers,retaining Ring
5940-01-145-5892MS21004-20 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5120-01-156-5613JC492 INTERCHANGEABLE
Wrench,spanner
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
JC484 The Stanley Works Dba Stanley Proto (USA)
AS6018 Society of Automotive Engineers Inc (USA)
C484 The Stanley Works Dba Stanley Proto (USA)
AS6018 Sae International Dba Sae International (USA)
AS6018 TY3CL2 General Services Administration Federal Supply Service (USA)
1APC3 W.w. Grainger, Inc. Div Government Sales Division (USA)
Related Parts
5120-00-264-3777INTERCHANGEABLE
WRENCH,SPANNER
5120-00-293-0207INTERCHANGEABLE
WRENCH,SPANNER
5120-00-293-0798INTERCHANGEABLE
WRENCH,SPANNER
5120-00-395-6660INTERCHANGEABLE
WRENCH,SPANNER
CAS-1456
5120-00-561-0854INTERCHANGEABLE
WRENCH,SPANNER
8284044
5120-00-561-0855INTERCHANGEABLE
WRENCH,SPANNER
8284045
5120-00-595-8996INTERCHANGEABLE
WRENCH,SPANNER
5120-00-595-8996
5120-00-595-9551INTERCHANGEABLE
PLIERS,RETAINING RING
5940-01-145-5892INTERCHANGEABLE
TERMINAL,LUG
MS21004-20
5120-01-156-5613INTERCHANGEABLE
WRENCH,SPANNER
JC492
5120-01-270-7428INTERCHANGEABLE
WRENCH,SPANNER
792
5120-01-337-0511INTERCHANGEABLE
WRENCH,SPANNER
482

Frequently Asked Questions

What is NSN 5120-01-399-8977?

NSN 5120-01-399-8977 is a Wrench,spanner, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-399-8977?

NSN 5120-01-399-8977 has 6 cross-referenced part numbers: JC484 (The Stanley Works Dba Stanley Proto), AS6018 (Society of Automotive Engineers Inc), C484 (The Stanley Works Dba Stanley Proto), AS6018 (Sae International Dba Sae International), AS6018 TY3CL2 (General Services Administration Federal Supply Service) and 1 more.

What NSN replaces 5120-01-399-8977?

There are 12 known substitutes for 5120-01-399-8977: 5120-00-264-3777, 5120-00-293-0207, 5120-00-293-0798 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JC484?

Key specifications for JC484: Center to Center Distance Between Pins: 4.000 INCHES MAXIMUM IN; Overall Length: 10.375 INCHES NOMINAL IN; Specification/standard Data: 0U583-SAE AS6018 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Nondefinitive Spec/std Data: 3 TYPE AND 2 CLASS. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com