PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.100Crowfoot Attachment,socket Wrenc

The American Society of Mechanical Engineers · NSN 5120-01-367-3328 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-367-3328 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-367-3328. Primary manufacturer part number: B107.100.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Nondefinitive Spec/std Data: 2 TYPE AND 1 CLASS
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Style Designator: OPEN END
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-367-3328, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-367-3328
Primary Part NumberB107.100
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Drive End ShapeSQUARE SINGLE END INTERNAL
Specification/standard Data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Nondefinitive Spec/std Data2 TYPE AND 1 CLASS
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Style DesignatorOPEN END
Wrenching Surface Size0.938 INCHES NOMINAL SINGLE END IN
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2995-00-798-844312859-3 INTERCHANGEABLE
Wheel
Triumph Controls, Llc Dba Triumph Controls, Llc
6150-01-178-758212859 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5331-01-316-1330 INTERCHANGEABLE
O-Ring
3120-01-399-260412859 INTERCHANGEABLE
Bushing,sleeve
Saginaw Products Corporation Dba Cignys
4320-01-432-121712859 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Hypro Llc
Cross-Reference Index
Part NumberManufacturer
B107.100 The American Society of Mechanical Engineers (USA)
B107.100 CAT 21 TY2CL1 General Services Administration Federal Supply Service (USA)
12-859 Armstrong Bros Tool Co (USA)
12-859 Apex Tool Group, Llc Dba Nicholson (USA)
12-859 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
B107.21 The American Society of Mechanical Engineers (USA)
B107.21 TY2CL1 General Services Administration Federal Supply Service (USA)
Related Parts
2995-00-798-8443INTERCHANGEABLE
WHEEL
12859-3
6150-01-178-7582INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
12859
5331-01-316-1330INTERCHANGEABLE
O-RING
3120-01-399-2604INTERCHANGEABLE
BUSHING,SLEEVE
12859
4320-01-432-1217INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
12859

Frequently Asked Questions

What is NSN 5120-01-367-3328?

NSN 5120-01-367-3328 is a Crowfoot Attachment,socket Wrenc, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-367-3328?

NSN 5120-01-367-3328 has 7 cross-referenced part numbers: B107.100 (The American Society of Mechanical Engineers), B107.100 CAT 21 TY2CL1 (General Services Administration Federal Supply Service), 12-859 (Armstrong Bros Tool Co), 12-859 (Apex Tool Group, Llc Dba Nicholson), 12-859 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.) and 2 more.

What NSN replaces 5120-01-367-3328?

There are 5 known substitutes for 5120-01-367-3328: 2995-00-798-8443, 6150-01-178-7582, 5331-01-316-1330 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.100?

Key specifications for B107.100: Drive End Shape: SQUARE SINGLE END INTERNAL; Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Nondefinitive Spec/std Data: 2 TYPE AND 1 CLASS; Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END 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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