PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L63Extension,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-451-3307 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-451-3307 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-451-3307. Primary manufacturer part number: L63.
Features
  • Extension,socket Wrench — FSC 5120
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP, ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 1 verified cross-reference
  • Primary manufacturer: Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-451-3307, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-451-3307
Primary Part NumberL63
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP, ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6240-00-155-8720 INTERCHANGEABLE
Lamp,incandescent
2520-00-379-4306 INTERCHANGEABLE
Disk,clutch,vehicular
3120-00-722-4488L63 INTERCHANGEABLE
Bearing,sleeve
Circor Naval Solutions Llc Dba Warren Pumps
4130-01-097-4706PD070101 INTERCHANGEABLE
Filter Element,air Conditioning
Avaho Acquisition Corp Dba Impac
2910-01-112-382512098A INTERCHANGEABLE
Carburetor,float
Zenith Fuel Systems Llc
6520-01-256-5019 INTERCHANGEABLE
Crown,dental,temporary
5120-01-437-1747J5861 INTERCHANGEABLE
Extension,socket Wrench
The Stanley Works Dba Stanley Proto
5340-01-449-7494L6-3 INTERCHANGEABLE
Clamp,synchro
Roller Bearing Co of America, Inc Div Pic Design
6150-01-631-3247L-63 INTERCHANGEABLE
Load Bank,electrical
Cannon Load Banks, Inc. Dba Cannon Load Banks Inc
Cross-Reference Index
Part NumberManufacturer
L63 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
6240-00-155-8720INTERCHANGEABLE
LAMP,INCANDESCENT
2520-00-379-4306INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
3120-00-722-4488INTERCHANGEABLE
BEARING,SLEEVE
L63
4130-01-097-4706INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
PD070101
2910-01-112-3825INTERCHANGEABLE
CARBURETOR,FLOAT
12098A
6520-01-256-5019INTERCHANGEABLE
CROWN,DENTAL,TEMPORARY
5120-01-437-1747INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
J5861
5340-01-449-7494INTERCHANGEABLE
CLAMP,SYNCHRO
L6-3
6150-01-631-3247INTERCHANGEABLE
LOAD BANK,ELECTRICAL
L-63

Frequently Asked Questions

What is NSN 5120-01-451-3307?

NSN 5120-01-451-3307 is a Extension,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-451-3307?

NSN 5120-01-451-3307 has 1 cross-referenced part number: L63 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).

What NSN replaces 5120-01-451-3307?

There are 9 known substitutes for 5120-01-451-3307: 6240-00-155-8720, 2520-00-379-4306, 3120-00-722-4488 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L63?

Key specifications for L63: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP, ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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