PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9729Wrench,box

Martin Sprocket and Gear Inc · NSN 5120-01-629-9700 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-629-9700 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-629-9700. Primary manufacturer part number: 9729.
Features
  • Wrench,box — FSC 5120
  • Wrenching End Offset Angle: 45.0 DEGREES NOMINAL
  • Style Designator: DEEP ANGULAR OFFSET DOUBLE HEAD
  • Wrenching Surface Size: 0.750 INCHES NOMINAL SECOND END IN
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 0.625 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-01-629-9700, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-629-9700
Primary Part Number9729
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerMartin Sprocket and Gear Inc
StatusACTIVE
Wrenching End Offset Angle45.0 DEGREES NOMINAL
Style DesignatorDEEP ANGULAR OFFSET DOUBLE HEAD
Wrenching Surface Size0.750 INCHES NOMINAL SECOND END IN
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.625 INCHES NOMINAL FIRST END IN
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-012-22300911048-7 INTERCHANGEABLE
Nut,plain,hexagon
Agco Corp Parts Opn
5905-00-193-3679 INTERCHANGEABLE
Resistor,fixed,wire Wound
5330-00-474-18209729 INTERCHANGEABLE
Packing,preformed
Hydro-Aire Aerospace Corp
5310-00-599-81119729 INTERCHANGEABLE
Washer,flat
Cummins Inc.
2910-00-640-5622107147 INTERCHANGEABLE
Filter,fluid
Cummins Inc.
2910-00-781-13545574533 INTERCHANGEABLE
Filter,fluid
Rolls-Royce Solutions America Inc
5340-01-189-48739729 INTERCHANGEABLE
Cover,access
Carlisle & Finch Co
6145-01-249-31339729 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5330-01-640-977343294 INTERCHANGEABLE
Seal,plain
Exlar Corporation
Cross-Reference Index
Part NumberManufacturer
9729 PRIMARY Martin Sprocket and Gear Inc (USA)
Related Parts
5310-00-012-2230INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0911048-7
5905-00-193-3679INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5330-00-474-1820INTERCHANGEABLE
PACKING,PREFORMED
9729
5310-00-599-8111INTERCHANGEABLE
WASHER,FLAT
9729
2910-00-640-5622INTERCHANGEABLE
FILTER,FLUID
107147
2910-00-781-1354INTERCHANGEABLE
FILTER,FLUID
5574533
5340-01-189-4873INTERCHANGEABLE
COVER,ACCESS
9729
6145-01-249-3133INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
9729
5330-01-640-9773INTERCHANGEABLE
SEAL,PLAIN
43294

Frequently Asked Questions

What is NSN 5120-01-629-9700?

NSN 5120-01-629-9700 is a Wrench,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 5120-01-629-9700?

NSN 5120-01-629-9700 has 1 cross-referenced part number: 9729 (Martin Sprocket and Gear Inc).

What NSN replaces 5120-01-629-9700?

There are 9 known substitutes for 5120-01-629-9700: 5310-00-012-2230, 5905-00-193-3679, 5330-00-474-1820 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9729?

Key specifications for 9729: Overall Length: 6.500 INCHES NOMINAL IN; Wrenching End Offset Angle: 45.0 DEGREES NOMINAL; Style Designator: DEEP ANGULAR OFFSET DOUBLE HEAD; Wrenching Surface Size: 0.750 INCHES NOMINAL SECOND END IN. 8 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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