PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3890Socket,crowfoot Wrench Head

Wta Tool Llc · NSN 5120-00-248-6663 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-248-6663 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-248-6663. Primary manufacturer part number: 3890.
Features
  • Socket,crowfoot Wrench Head — FSC 5120
  • Surface Treatment: CHROMIUM AND NICKEL AND OXIDE OVERALL
  • Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL
  • Drive End Outside Diameter: 0.678 INCHES NOMINAL IN
  • Wrenching End Outside Diameter: 0.750 INCHES NOMINAL IN
  • Style Designator: EXTERNAL-INTERNAL
  • Opening Diameter: 0.307 INCHES MINIMUM IN
  • Wrenching Surface Size: 0.437 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,crowfoot Wrench Head, cataloged under National Stock Number 5120-00-248-6663, 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 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-248-6663
Primary Part Number3890
Item NameSocket,crowfoot Wrench Head
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerWta Tool Llc
StatusCANCELLED
Surface TreatmentCHROMIUM AND NICKEL AND OXIDE OVERALL
Wrenching Surface ShapeHEXAGON SINGLE END INTERNAL
Drive End Outside Diameter0.678 INCHES NOMINAL IN
Wrenching End Outside Diameter0.750 INCHES NOMINAL IN
Style DesignatorEXTERNAL-INTERNAL
Opening Diameter0.307 INCHES MINIMUM IN
Wrenching Surface Size0.437 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5325-00-141-7577 INTERCHANGEABLE
Post,snapslide Fastener
5950-00-251-6615734-0049-001 INTERCHANGEABLE
Transformer,power
Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial
5310-00-276-86373890 INTERCHANGEABLE
Washer,recessed
Kurz & Root Generator Company, Llc
2805-00-294-2690 INTERCHANGEABLE
Ring,piston
6250-00-536-16552912 INTERCHANGEABLE
Lampholder
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5365-00-930-94363890 INTERCHANGEABLE
Shim
Specialty Washer Co of South Carolina Inc
6665-01-285-8141 INTERCHANGEABLE
Monitor,freon
4920-01-539-38243890 INTERCHANGEABLE
Media Bulb,aircraft
Ccrco, Llc Dba C C R C O
Cross-Reference Index
Part NumberManufacturer
16014T Ingersoll-Rand Co Proto Tool Div Tool Group Headquarters (USA)
GGG-W-646 TY2CL1STBFMATM151 General Services Administration Federal Supply Service (USA)
3890 PRIMARY Wta Tool Llc (USA)
GGG-W-646 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GIT-3890 Granco Industries Inc (USA)
3890 Granco Industries Inc (USA)
Related Parts
5325-00-141-7577INTERCHANGEABLE
POST,SNAPSLIDE FASTENER
5950-00-251-6615INTERCHANGEABLE
TRANSFORMER,POWER
734-0049-001
5310-00-276-8637INTERCHANGEABLE
WASHER,RECESSED
3890
2805-00-294-2690INTERCHANGEABLE
RING,PISTON
6250-00-536-1655INTERCHANGEABLE
LAMPHOLDER
2912
5365-00-930-9436INTERCHANGEABLE
SHIM
3890
6665-01-285-8141INTERCHANGEABLE
MONITOR,FREON
4920-01-539-3824INTERCHANGEABLE
MEDIA BULB,AIRCRAFT
3890

Frequently Asked Questions

What is NSN 5120-00-248-6663?

NSN 5120-00-248-6663 is a Socket,crowfoot Wrench Head, manufactured by Wta Tool Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-248-6663?

NSN 5120-00-248-6663 has 6 cross-referenced part numbers: 16014T (Ingersoll-Rand Co Proto Tool Div Tool Group Headquarters), GGG-W-646 TY2CL1STBFMATM151 (General Services Administration Federal Supply Service), 3890 (Wta Tool Llc), GGG-W-646 (Federal Specifications Promulgated by General Services Administration Washington DC), GIT-3890 (Granco Industries Inc) and 1 more.

What NSN replaces 5120-00-248-6663?

There are 8 known substitutes for 5120-00-248-6663: 5325-00-141-7577, 5950-00-251-6615, 5310-00-276-8637 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3890?

Key specifications for 3890: Surface Treatment: CHROMIUM AND NICKEL AND OXIDE OVERALL; Wrenching Surface Shape: HEXAGON SINGLE END INTERNAL; Drive End Outside Diameter: 0.678 INCHES NOMINAL IN; Wrenching End Outside Diameter: 0.750 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-248-6663 still in active supply?

NSN 5120-00-248-6663 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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