PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

305-6Marlinespike

Leetonia Tool Co the · NSN 5120-00-221-2728 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-221-2728 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-221-2728. Primary manufacturer part number: 305-6.
Features
  • Marlinespike — FSC 5120
  • Material: STEEL
  • 5 verified cross-references
  • Primary manufacturer: Leetonia Tool Co the
Applications
  • Applications requiring Steel construction
General Description

The Marlinespike, cataloged under National Stock Number 5120-00-221-2728, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Leetonia Tool Co the. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5120-00-221-2728
Primary Part Number305-6
Item NameMarlinespike
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerLeetonia Tool Co the
StatusACTIVE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-057-2379 INTERCHANGEABLE
Spring,helical,compression
5305-00-065-31944041 INTERCHANGEABLE
Thumbscrew
Roller Bearing Co of America, Inc Div Pic Design
5950-00-081-2477242016P1 INTERCHANGEABLE
Reactor
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5995-00-117-4290114438-3 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Bae Systems Information and Electronic Systems Integration Inc.
5950-00-133-29223056 INTERCHANGEABLE
Transformer,power
Ballantine Laboratories Inc
4920-00-135-48463056 INTERCHANGEABLE
Pickup,magnetic
Honeywell International Inc. Dba Honeywell Div Honeywell Sensing and Control
5306-00-195-473151658 INTERCHANGEABLE
Bolt,toggle
Fastenal Company
6645-00-225-27374041 INTERCHANGEABLE
Wheel,escape
Wakmann Watch Company Inc
4730-00-277-9678305-6 INTERCHANGEABLE
Nipple,tube
Lenz Inc Dba the Lenz Company
5915-00-403-7621404-1 INTERCHANGEABLE
Network,hybrid Circuit
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
Cross-Reference Index
Part NumberManufacturer
GGG-M-00100 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
305-6 PRIMARY Leetonia Tool Co the (USA)
CTM-4041 PRIMARY Huntington Partners, Inc. Dba Continental Tool & Mfg. (USA)
4041 Huntington Partners, Inc. Dba Continental Tool & Mfg. (USA)
A-A-2531 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5360-00-057-2379INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5305-00-065-3194INTERCHANGEABLE
THUMBSCREW
4041
5950-00-081-2477INTERCHANGEABLE
REACTOR
242016P1
5995-00-117-4290INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
114438-3
5950-00-133-2922INTERCHANGEABLE
TRANSFORMER,POWER
3056
4920-00-135-4846INTERCHANGEABLE
PICKUP,MAGNETIC
3056
5306-00-195-4731INTERCHANGEABLE
BOLT,TOGGLE
51658
6645-00-225-2737INTERCHANGEABLE
WHEEL,ESCAPE
4041
4730-00-277-9678INTERCHANGEABLE
NIPPLE,TUBE
305-6
5915-00-403-7621INTERCHANGEABLE
NETWORK,HYBRID CIRCUIT
404-1
6605-00-413-7240INTERCHANGEABLE
EXTRACTOR
4041
6610-00-462-9840INTERCHANGEABLE
SHAFT ASSY,PINION
3056

Frequently Asked Questions

What is NSN 5120-00-221-2728?

NSN 5120-00-221-2728 is a Marlinespike, manufactured by Leetonia Tool Co the, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-221-2728?

NSN 5120-00-221-2728 has 5 cross-referenced part numbers: GGG-M-00100 (Federal Specifications Promulgated by General Services Administration Washington DC), 305-6 (Leetonia Tool Co the), CTM-4041 (Huntington Partners, Inc. Dba Continental Tool & Mfg.), 4041 (Huntington Partners, Inc. Dba Continental Tool & Mfg.), A-A-2531 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-00-221-2728?

There are 12 known substitutes for 5120-00-221-2728: 5360-00-057-2379, 5305-00-065-3194, 5950-00-081-2477 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 305-6?

Key specifications for 305-6: Material: STEEL; Overall Length: 6.000 INCHES NOMINAL IN; Special Features: WITH EYE; FOR MANILA ROPE. 3 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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