PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3721Spring,helical,torsion

Sachs-Boge of America · NSN 5360-00-360-6899 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-360-6899 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-360-6899. Primary manufacturer part number: 3721.
Features
  • Spring,helical,torsion — FSC 5360
  • Center Section Width: 1.719 INCHES NOMINAL IN
  • Spring Free Length: 2.283 INCHES NOMINAL IN
  • End Angular Relationship: ENDS PARALLEL ONE TO OTHER
  • Style Designator: SINGLE TORSION RIGHT HAND
  • Inside Diameter: 0.665 INCHES NOMINAL IN
  • Spring Free Outside Diameter: 0.875 INCHES NOMINAL IN
  • 13 verified cross-references
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Spring,helical,torsion, cataloged under National Stock Number 5360-00-360-6899, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sachs-Boge of America. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 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
NSN5360-00-360-6899
Primary Part Number3721
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerSachs-Boge of America
StatusCANCELLED
Center Section Width1.719 INCHES NOMINAL IN
Spring Free Length2.283 INCHES NOMINAL IN
End Angular RelationshipENDS PARALLEL ONE TO OTHER
Style DesignatorSINGLE TORSION RIGHT HAND
Inside Diameter0.665 INCHES NOMINAL IN
Spring Free Outside Diameter0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-154-49913721 INTERCHANGEABLE
Seal,plain Encased
Schindler Elevator Corporation
2530-00-192-8747 INTERCHANGEABLE
Cylinder,hydraulic Brake,wheel
5120-00-293-21363721 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
4920-00-435-9609372-1 INTERCHANGEABLE
Detector,voltage,test Set
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
5995-00-711-67607116760 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Army, United States Department of the Dba Rock Island Arsenal Jmtc
1730-00-786-7347 INTERCHANGEABLE
Repair Kit,bearing,
5998-00-827-2018 INTERCHANGEABLE
Circuit Card Assembly
5950-00-862-94443721 INTERCHANGEABLE
Reactor
Pulse Engineering Inc
4520-00-911-7979 INTERCHANGEABLE
Heating Element,electrical,nonim
5915-00-924-9599372-1 INTERCHANGEABLE
Filter,low Pass
American Trans-Coil Corp
Cross-Reference Index
Part NumberManufacturer
09-6002 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
6002 Mitsubishi Caterpillar Forklift America, Inc (USA)
3721 PRIMARY Sachs-Boge of America (USA)
BB3721 Taylor-Dunn Corporation Dba Metro Crown International (USA)
15392A Massey-Ferguson Inc Gear and Shaft Plant Div (USA)
07-850767 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
07-850767 Tvh Parts Co. (USA)
09-6002 Tvh Parts Co. (USA)
850767 Dana Off Highway Products, Llc (USA)
311774 Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
850767 Clark Equipment Co (USA)
5248952 General Motors Corp (USA)
BB721 Taylor-Dunn Corporation Dba Metro Crown International (USA)
Related Parts
5330-00-154-4991INTERCHANGEABLE
SEAL,PLAIN ENCASED
3721
2530-00-192-8747INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,WHEEL
5120-00-293-2136INTERCHANGEABLE
WRENCH,OPEN END
3721
4920-00-435-9609INTERCHANGEABLE
DETECTOR,VOLTAGE,TEST SET
372-1
5995-00-711-6760INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
7116760
1730-00-786-7347INTERCHANGEABLE
REPAIR KIT,BEARING,
5998-00-827-2018INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5950-00-862-9444INTERCHANGEABLE
REACTOR
3721
4520-00-911-7979INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5915-00-924-9599INTERCHANGEABLE
FILTER,LOW PASS
372-1
8520-01-101-6948INTERCHANGEABLE
SHAMPOO
3721
5120-01-161-4543INTERCHANGEABLE
BIT,SCREWDRIVER
3-721

Frequently Asked Questions

What is NSN 5360-00-360-6899?

NSN 5360-00-360-6899 is a Spring,helical,torsion, manufactured by Sachs-Boge of America, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-360-6899?

NSN 5360-00-360-6899 has 13 cross-referenced part numbers: 09-6002 (Lift Parts Mfg Co Inc Div of Echlin Mfg Co the), 6002 (Mitsubishi Caterpillar Forklift America, Inc), 3721 (Sachs-Boge of America), BB3721 (Taylor-Dunn Corporation Dba Metro Crown International), 15392A (Massey-Ferguson Inc Gear and Shaft Plant Div) and 8 more.

What NSN replaces 5360-00-360-6899?

There are 12 known substitutes for 5360-00-360-6899: 5330-00-154-4991, 2530-00-192-8747, 5120-00-293-2136 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3721?

Key specifications for 3721: Center Section Width: 1.719 INCHES NOMINAL IN; Spring Free Length: 2.283 INCHES NOMINAL IN; End Angular Relationship: ENDS PARALLEL ONE TO OTHER; Style Designator: SINGLE TORSION RIGHT HAND. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-360-6899 still in active supply?

NSN 5360-00-360-6899 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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