PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12-844Crowfoot Attachment,socket Wrenc

Apex Tool Group, Llc Dba Nicholson · NSN 5120-01-588-7801 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-588-7801 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-588-7801. Primary manufacturer part number: 12-844.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Style Designator: FLARE NUT
  • Head Thickness: 0.938 INCHES NOMINAL IN
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-588-7801, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN5120-01-588-7801
Primary Part Number12-844
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerApex Tool Group, Llc Dba Nicholson
StatusACTIVE
Style DesignatorFLARE NUT
Head Thickness0.938 INCHES NOMINAL IN
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size1.375 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5935-00-173-72851299 INTERCHANGEABLE
Connector,receptacle,electrical
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5330-00-291-914512844 INTERCHANGEABLE
Seal,plain Encased
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
3040-00-335-92961146 INTERCHANGEABLE
Shaft,governor Arm
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5310-00-550-336112844 INTERCHANGEABLE
Nut,plain,hexagon
Ge Aviation Systems Llc
3815-00-566-0510 INTERCHANGEABLE
Pivot,latch Lever
1660-00-755-728112844 INTERCHANGEABLE
Cover,bottom
Avox Systems Inc Dba Avox Systems Inc
6105-01-258-5882T10035-E INTERCHANGEABLE
Motor,torque
Kollmorgen Corp
Cross-Reference Index
Part NumberManufacturer
12-844 Apex Tool Group, Llc Dba Nicholson (USA)
12-844 Armstrong Bros Tool Co (USA)
12-844 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
069-12-844 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
069-12-844 Apex Tool Group, Llc Dba Nicholson (USA)
Related Parts
5935-00-173-7285INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1299
5330-00-291-9145INTERCHANGEABLE
SEAL,PLAIN ENCASED
12844
3040-00-335-9296INTERCHANGEABLE
SHAFT,GOVERNOR ARM
1146
5310-00-550-3361INTERCHANGEABLE
NUT,PLAIN,HEXAGON
12844
3815-00-566-0510INTERCHANGEABLE
PIVOT,LATCH LEVER
1660-00-755-7281INTERCHANGEABLE
COVER,BOTTOM
12844
6105-01-258-5882INTERCHANGEABLE
MOTOR,TORQUE
T10035-E

Frequently Asked Questions

What is NSN 5120-01-588-7801?

NSN 5120-01-588-7801 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 5120-01-588-7801?

NSN 5120-01-588-7801 has 5 cross-referenced part numbers: 12-844 (Apex Tool Group, Llc Dba Nicholson), 12-844 (Armstrong Bros Tool Co), 12-844 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 069-12-844 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 069-12-844 (Apex Tool Group, Llc Dba Nicholson).

What NSN replaces 5120-01-588-7801?

There are 7 known substitutes for 5120-01-588-7801: 5935-00-173-7285, 5330-00-291-9145, 3040-00-335-9296 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12-844?

Key specifications for 12-844: Style Designator: FLARE NUT; Overall Length: 1.313 INCHES NOMINAL IN; Overall Width: 1.938 INCHES NOMINAL IN; Head Thickness: 0.938 INCHES NOMINAL IN. 10 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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