PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5378Crowfoot Attachment,socket Wrenc

Wta Tool Llc · NSN 5120-00-812-5523 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-812-5523 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-812-5523. Primary manufacturer part number: 5378.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Opening Diameter: 1.625 INCHES NOMINAL IN
  • Wrenching Surface Size: 1.625 INCHES NOMINAL SINGLE END IN
  • Drive Surface Size: 0.227 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Style Designator: SPANNER
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: ROUND SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-00-812-5523, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Wta Tool Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-812-5523
Primary Part Number5378
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWta Tool Llc
StatusCANCELLED
Opening Diameter1.625 INCHES NOMINAL IN
Wrenching Surface Size1.625 INCHES NOMINAL SINGLE END IN
Drive Surface Size0.227 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorSPANNER
MaterialSTEEL OVERALL
Wrenching Surface ShapeROUND SINGLE END INTERNAL
Lug Thickness0.227 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
2840-00-476-1516308D771P1 INTERCHANGEABLE
Insulation Blanket
General Electric Company
2840-00-656-85251-110-005-01 INTERCHANGEABLE
Plug,thermocouple,r
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5935-00-666-30014725 INTERCHANGEABLE
Adapter,connector
Amphenol Corporation Div Amphenol Rf
5365-00-685-2587 INTERCHANGEABLE
Shim
1650-00-822-80155378 INTERCHANGEABLE
Parts Kit,valve,cur
Hydro-Aire Aerospace Corp
5985-01-016-81365378 INTERCHANGEABLE
Dummy Load,electrical
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
5330-01-214-509413079868 INTERCHANGEABLE
Gasket
Northrop Grumman Systems Corporation
5360-01-262-8401 INTERCHANGEABLE
Spring,helical,compression
5360-01-313-99915378 INTERCHANGEABLE
Spring,helical,compression
Tescom Corp Dba Tescom Div Tescom
5935-01-611-86505378 INTERCHANGEABLE
Connector Body,receptacle,electr
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
Cross-Reference Index
Part NumberManufacturer
5378 Granco Industries Inc (USA)
5378 PRIMARY Wta Tool Llc (USA)
R9424A Stanley-Proto Industrial Works Div of the Stanley Works (USA)
GIT5378 Granco Industries Inc (USA)
Related Parts
2840-00-476-1516INTERCHANGEABLE
INSULATION BLANKET
308D771P1
2840-00-656-8525INTERCHANGEABLE
PLUG,THERMOCOUPLE,R
1-110-005-01
5935-00-666-3001INTERCHANGEABLE
ADAPTER,CONNECTOR
4725
5365-00-685-2587INTERCHANGEABLE
SHIM
1650-00-822-8015INTERCHANGEABLE
PARTS KIT,VALVE,CUR
5378
5985-01-016-8136INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
5378
5330-01-214-5094INTERCHANGEABLE
GASKET
13079868
5360-01-262-8401INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5360-01-313-9991INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5378
5935-01-611-8650INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
5378

Frequently Asked Questions

What is NSN 5120-00-812-5523?

NSN 5120-00-812-5523 is a Crowfoot Attachment,socket Wrenc, manufactured by Wta Tool Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-812-5523?

NSN 5120-00-812-5523 has 4 cross-referenced part numbers: 5378 (Granco Industries Inc), 5378 (Wta Tool Llc), R9424A (Stanley-Proto Industrial Works Div of the Stanley Works), GIT5378 (Granco Industries Inc).

What NSN replaces 5120-00-812-5523?

There are 10 known substitutes for 5120-00-812-5523: 2840-00-476-1516, 2840-00-656-8525, 5935-00-666-3001 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5378?

Key specifications for 5378: Opening Diameter: 1.625 INCHES NOMINAL IN; Wrenching Surface Size: 1.625 INCHES NOMINAL SINGLE END IN; Drive Surface Size: 0.227 INCHES NOMINAL SINGLE END IN; Drive End Shape: SQUARE SINGLE END INTERNAL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-812-5523 still in active supply?

NSN 5120-00-812-5523 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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