PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

72-1251Extension,socket Wrench

Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. · NSN 5120-01-428-8007 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-428-8007 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-428-8007. Primary manufacturer part number: 72-1251.
Features
  • Extension,socket Wrench — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Features Provided: MANUAL TOOL
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Material: STEEL OVERALL
  • Style Designator: RIGID
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-428-8007, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-428-8007
Primary Part Number72-1251
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerEasco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.
StatusCANCELLED
Surface TreatmentCHROMIUM OVERALL
Features ProvidedMANUAL TOOL
Drive End ShapeSQUARE FIRST END INTERNAL
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
MaterialSTEEL OVERALL
Style DesignatorRIGID
Drive End ShapeSQUARE SECOND END EXTERNAL
Drive Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-176-8113340-9 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Hamilton Sundstrand Corporation
5330-00-200-62583409 INTERCHANGEABLE
Gasket
Industrial Technologies and Services Llc
5360-00-231-317511909 INTERCHANGEABLE
Spring,helical,compression
Hydro-Aire Aerospace Corp
5975-00-246-7393BU410 INTERCHANGEABLE
Bushing,electrical Conduit
Abb Installation Products Inc
4940-00-274-3026 INTERCHANGEABLE
Degreaser
4730-00-439-1722SAE J512 6-6 010102B INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
1660-00-511-35053409 INTERCHANGEABLE
Filler Assy
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
6640-00-526-8113 INTERCHANGEABLE
Pipet,measuring
3110-00-554-34661409-1B1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
3040-00-600-3005SM-B-314726 INTERCHANGEABLE
Collar,shaft
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
72-1251 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
72-1251 Apex Tool Group, Llc Dba Nicholson (USA)
72-1253 Apex Tool Group, Llc Dba Nicholson (USA)
11909 Apex Tool Group, Llc Dba Nicholson (USA)
AS4283 Sae International Dba Sae International (USA)
72-1253 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
FXW1 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS4283 TY2CL2 General Services Administration Federal Supply Service (USA)
3409 Wright Tool Co (USA)
11909 Easco Hand Tools Inc (USA)
11909 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
FXW1 Snap on Uk Holdings Ltd T/a Snap on Tools (GBR)
AS4283 Society of Automotive Engineers Inc (USA)
Related Parts
5310-00-176-8113INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
340-9
5330-00-200-6258INTERCHANGEABLE
GASKET
3409
5360-00-231-3175INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11909
5975-00-246-7393INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
BU410
4940-00-274-3026INTERCHANGEABLE
DEGREASER
4730-00-439-1722INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 6-6 010102B
1660-00-511-3505INTERCHANGEABLE
FILLER ASSY
3409
6640-00-526-8113INTERCHANGEABLE
PIPET,MEASURING
3110-00-554-3466INTERCHANGEABLE
BEARING,BALL,ANNULAR
1409-1B1
3040-00-600-3005INTERCHANGEABLE
COLLAR,SHAFT
SM-B-314726
5910-01-084-6231INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
C3409-7
2540-01-185-6174INTERCHANGEABLE
BELT,VEHICULAR SAFETY
8Y4032

Frequently Asked Questions

What is NSN 5120-01-428-8007?

NSN 5120-01-428-8007 is a Extension,socket Wrench, manufactured by Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc., classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-428-8007?

NSN 5120-01-428-8007 has 13 cross-referenced part numbers: 72-1251 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 72-1251 (Apex Tool Group, Llc Dba Nicholson), 72-1253 (Apex Tool Group, Llc Dba Nicholson), 11909 (Apex Tool Group, Llc Dba Nicholson), AS4283 (Sae International Dba Sae International) and 8 more.

What NSN replaces 5120-01-428-8007?

There are 12 known substitutes for 5120-01-428-8007: 5310-00-176-8113, 5330-00-200-6258, 5360-00-231-3175 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 72-1251?

Key specifications for 72-1251: Surface Treatment: CHROMIUM OVERALL; Features Provided: MANUAL TOOL; Drive End Shape: SQUARE FIRST END INTERNAL; Special Features: WOBBLE TYPE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-428-8007 still in active supply?

NSN 5120-01-428-8007 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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