PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FRS VO4042BWrench,open End

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-00-277-2321 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-2321 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-2321. Primary manufacturer part number: FRS VO4042B.
Features
  • Wrench,open End — FSC 5120
  • Small End Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Size: 1.250 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL
  • Specification/standard Data: 05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Size: 1.312 INCHES NOMINAL SECOND END IN
  • Large End Head Thickness: 0.562 INCHES MAXIMUM IN
  • Small End Head Thickness: 0.531 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End, cataloged under National Stock Number 5120-00-277-2321, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-277-2321
Primary Part NumberFRS VO4042B
Item NameWrench,open End
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Small End Head Angle15.0 DEGREES NOMINAL
Wrenching Surface Size1.250 INCHES NOMINAL FIRST END IN
Wrenching Surface ShapeOVAL BOTH ENDS INTERNAL
Specification/standard Data05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size1.312 INCHES NOMINAL SECOND END IN
Large End Head Thickness0.562 INCHES MAXIMUM IN
Small End Head Thickness0.531 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Large End Head Angle15.0 DEGREES NOMINAL
Nondefinitive Spec/std Data1 TYPE
Surface TreatmentCHROMIUM OVERALL
Style DesignatorDOUBLE HEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-103-96832546388-1 INTERCHANGEABLE
Holder,semiconductor Device
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1650-00-166-4786 INTERCHANGEABLE
Head,linear Actuating Cylinder
5330-00-465-11411342VR INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5965-00-553-6898SM-C-134003 INTERCHANGEABLE
Headband,headset
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6240-00-643-4532342 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Lighting Products Group Hillsboro Miniature Lamp Plant
3010-00-646-8989150-0620 INTERCHANGEABLE
Shifter Fork,nonvehicular
Cummins Power Generation Inc.
1730-00-772-6889 INTERCHANGEABLE
Wheel,rubber,cushio
3460-01-005-48101342 INTERCHANGEABLE
Mandrel,machine,solid
Cratex Manufacturing Co Inc
5120-01-106-62781342 INTERCHANGEABLE
Expander
Allison Transmission Inc Dba Allison Transmission, Inc
3960-01-112-7199DT7-16-412-1342 INTERCHANGEABLE
Sprocket Head Shaft
Transco Industries Inc
Cross-Reference Index
Part NumberManufacturer
VO4042B Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
FRS VO4042B PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.39 TY1CL1 General Services Administration Federal Supply Service (USA)
B107.39 The American Society of Mechanical Engineers (USA)
1342 Wright Tool Company, Llc (USA)
S4042 Sna Germany Gmbh (DEU)
TKKX5 Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
B107.6 The American Society of Mechanical Engineers (USA)
B107.100 CAT 39 TY1CL1 General Services Administration Federal Supply Service (USA)
V04042 Sna Germany Gmbh (DEU)
VO4042 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
A-A-1356 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.100 The American Society of Mechanical Engineers (USA)
S4042 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-W-636 TY4 General Services Administration Federal Supply Service (USA)
Related Parts
5961-00-103-9683INTERCHANGEABLE
HOLDER,SEMICONDUCTOR DEVICE
2546388-1
1650-00-166-4786INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
5330-00-465-1141INTERCHANGEABLE
GASKET
1342VR
5965-00-553-6898INTERCHANGEABLE
HEADBAND,HEADSET
SM-C-134003
6240-00-643-4532INTERCHANGEABLE
LAMP,INCANDESCENT
342
3010-00-646-8989INTERCHANGEABLE
SHIFTER FORK,NONVEHICULAR
150-0620
1730-00-772-6889INTERCHANGEABLE
WHEEL,RUBBER,CUSHIO
3460-01-005-4810INTERCHANGEABLE
MANDREL,MACHINE,SOLID
1342
5120-01-106-6278INTERCHANGEABLE
EXPANDER
1342
3960-01-112-7199INTERCHANGEABLE
SPROCKET HEAD SHAFT
DT7-16-412-1342
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FILTER ELEMENT,FLUID
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SHROUD,MOLDED ASSY
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Frequently Asked Questions

What is NSN 5120-00-277-2321?

NSN 5120-00-277-2321 is a Wrench,open End, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-277-2321?

NSN 5120-00-277-2321 has 16 cross-referenced part numbers: VO4042B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), FRS VO4042B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.39 TY1CL1 (General Services Administration Federal Supply Service), B107.39 (The American Society of Mechanical Engineers), 1342 (Wright Tool Company, Llc) and 11 more.

What NSN replaces 5120-00-277-2321?

There are 12 known substitutes for 5120-00-277-2321: 5961-00-103-9683, 1650-00-166-4786, 5330-00-465-1141 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FRS VO4042B?

Key specifications for FRS VO4042B: Small End Head Angle: 15.0 DEGREES NOMINAL; Wrenching Surface Size: 1.250 INCHES NOMINAL FIRST END IN; Wrenching Surface Shape: OVAL BOTH ENDS INTERNAL; Specification/standard Data: 05047-ASME B107.100 CAT 39 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-277-2321 still in active supply?

NSN 5120-00-277-2321 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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