PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4128Wrench,open End Box

Martin Sprocket and Gear Inc · NSN 5120-00-224-3163 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-224-3163 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-224-3163. Primary manufacturer part number: 4128.
Features
  • Wrench,open End Box — FSC 5120
  • Specification/standard Data: 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: FLARE NUT SINGLE END
  • Material: STEEL OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Surface Treatment: PHOSPHATE OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS AND D STYLE
  • Wrenching Surface Size: 0.875 INCHES NOMINAL SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End Box, cataloged under National Stock Number 5120-00-224-3163, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-224-3163
Primary Part Number4128
Item NameWrench,open End Box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMartin Sprocket and Gear Inc
StatusACTIVE
Specification/standard Data0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorFLARE NUT SINGLE END
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentPHOSPHATE OVERALL
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS AND D STYLE
Wrenching Surface Size0.875 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6810-00-174-51831-1308 INTERCHANGEABLE
Calcium Chloride,anhydrous
Avantor Performance Materials, Inc.
6810-00-174-5188 INTERCHANGEABLE
Calcium Chloride,anhydrous
5120-00-181-6765 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-224-3103 INTERCHANGEABLE
Wrench,open End Box
5120-00-224-3104 INTERCHANGEABLE
Wrench,open End Box
5120-00-224-3105 INTERCHANGEABLE
Wrench,open End Box
5120-00-224-3106 INTERCHANGEABLE
Wrench,open End Box
5120-00-224-3155RX12 INTERCHANGEABLE
Wrench,open End Box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-224-3156 INTERCHANGEABLE
Wrench,open End Box
5120-00-224-3157 INTERCHANGEABLE
Wrench,open End Box
Cross-Reference Index
Part NumberManufacturer
AS4167 Society of Automotive Engineers Inc (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
4128 PRIMARY Martin Sprocket and Gear Inc (USA)
AS4167 Sae International Dba Sae International (USA)
A-A-1350 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AS4167 TY2CL2STD General Services Administration Federal Supply Service (USA)
GGG-W-636 TY14 General Services Administration Federal Supply Service (USA)
RX28A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
6810-00-174-5183INTERCHANGEABLE
CALCIUM CHLORIDE,ANHYDROUS
1-1308
6810-00-174-5188INTERCHANGEABLE
CALCIUM CHLORIDE,ANHYDROUS
5120-00-181-6765INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-224-3103INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3104INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3105INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3106INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3155INTERCHANGEABLE
WRENCH,OPEN END BOX
RX12
5120-00-224-3156INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3157INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3158INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-00-224-3159INTERCHANGEABLE
WRENCH,OPEN END BOX

Frequently Asked Questions

What is NSN 5120-00-224-3163?

NSN 5120-00-224-3163 is a Wrench,open End Box, manufactured by Martin Sprocket and Gear Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-224-3163?

NSN 5120-00-224-3163 has 8 cross-referenced part numbers: AS4167 (Society of Automotive Engineers Inc), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), 4128 (Martin Sprocket and Gear Inc), AS4167 (Sae International Dba Sae International), A-A-1350 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 5120-00-224-3163?

There are 12 known substitutes for 5120-00-224-3163: 6810-00-174-5183, 6810-00-174-5188, 5120-00-181-6765 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4128?

Key specifications for 4128: Specification/standard Data: 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Special Features: HEAD THICKNESS - 0.610 IN. (PLUS / MINUS 0.15 IN.) IN; Style Designator: FLARE NUT SINGLE END; Material: STEEL OVERALL. 9 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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