PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-852Crowfoot Attachment,socket Wrenc

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-585-8829 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-585-8829 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-585-8829. Primary manufacturer part number: 12-852.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Head Thickness: 1.063 INCHES NOMINAL IN
  • Opening Width: 1.375 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Wrenching Surface Size: 1.875 INCHES NOMINAL SINGLE END IN
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-585-8829, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Apex Tool Group, Llc Dba Nicholson. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-585-8829
Primary Part Number12-852
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
Head Thickness1.063 INCHES NOMINAL IN
Opening Width1.375 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Wrenching Surface Size1.875 INCHES NOMINAL SINGLE END IN
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Style DesignatorFLARE NUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5306-00-298-865512852 INTERCHANGEABLE
Bolt,machine
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5307-00-373-863212852 INTERCHANGEABLE
Stud,locked in
Triumph Engine Control Systems Llc
5950-00-417-4376373304-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
1650-00-691-304312852 INTERCHANGEABLE
Filter Element,fluid
Frontgrade Technologies Inc. Dba Frontgrade Technologies Inc.
6150-01-179-538312852 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
3020-01-297-910912852 INTERCHANGEABLE
Gear,spur
Aerosonic Llc
4820-01-425-3690 INTERCHANGEABLE
Valve Assembly,manifold
Cross-Reference Index
Part NumberManufacturer
12-852 Apex Tool Group, Llc Dba Nicholson (USA)
12-852 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
12-852 Armstrong Bros Tool Co (USA)
Related Parts
5306-00-298-8655INTERCHANGEABLE
BOLT,MACHINE
12852
5307-00-373-8632INTERCHANGEABLE
STUD,LOCKED IN
12852
5950-00-417-4376INTERCHANGEABLE
TRANSFORMER,POWER
373304-1
1650-00-691-3043INTERCHANGEABLE
FILTER ELEMENT,FLUID
12852
6150-01-179-5383INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12852
3020-01-297-9109INTERCHANGEABLE
GEAR,SPUR
12852
4820-01-425-3690INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD

Frequently Asked Questions

What is NSN 5120-01-585-8829?

NSN 5120-01-585-8829 is a Crowfoot Attachment,socket Wrenc, manufactured by Apex Tool Group, Llc Dba Nicholson, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-585-8829?

NSN 5120-01-585-8829 has 3 cross-referenced part numbers: 12-852 (Apex Tool Group, Llc Dba Nicholson), 12-852 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 12-852 (Armstrong Bros Tool Co).

What NSN replaces 5120-01-585-8829?

There are 7 known substitutes for 5120-01-585-8829: 5306-00-298-8655, 5307-00-373-8632, 5950-00-417-4376 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-852?

Key specifications for 12-852: Overall Width: 2.563 INCHES NOMINAL IN; Head Thickness: 1.063 INCHES NOMINAL IN; Opening Width: 1.375 INCHES NOMINAL IN; Overall Length: 1.641 INCHES NOMINAL IN. 11 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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