PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42039Link,chain,lap

Johnson C S Co Inc · NSN 4010-00-684-3718 · FSC 4010 · No Item Name Available
Verified by PartsTable
NSN 4010-00-684-3718 — this item is cataloged by the U.S. Government under National Stock Number 4010-00-684-3718. Primary manufacturer part number: 42039.
Features
  • Link,chain,lap — FSC 4010
  • Material Document and Classification: ASTM A575 ASSN STD ALL MATERIAL RESPONSES
  • Nondefinitive Spec/std Data: III TYPE
  • Material Diameter: 0.312 INCHES NOMINAL IN
  • Style Designator: END LAP
  • Material: STEEL COMP M1020 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1017 OR STEEL COMP 1020 OR STEEL COMP 1023 OR STEEL COMP 1025
  • 6 verified cross-references
  • Primary manufacturer: Johnson C S Co Inc
Applications
  • Applications requiring Steel Comp M1020 or Steel Comp 1008 or Steel Comp 1010 or Steel Comp 1012 or Steel Comp 1015 or Steel Comp 1017 or Steel Comp 1020 or Steel Comp 1023 or Steel Comp 1025 construction
General Description

The Link,chain,lap, cataloged under National Stock Number 4010-00-684-3718, is classified within Federal Supply Class 4010 (No Item Name Available) of the Rope, Cable, Chain, and Fittings group. The primary manufacturer of record is Johnson C S Co Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4010-00-684-3718
Primary Part Number42039
Item NameLink,chain,lap
FSC / FSG4010 / 40 — No Item Name Available
ManufacturerJohnson C S Co Inc
StatusCANCELLED
Material Document and ClassificationASTM A575 ASSN STD ALL MATERIAL RESPONSES
Nondefinitive Spec/std DataIII TYPE
Material Diameter0.312 INCHES NOMINAL IN
Style DesignatorEND LAP
MaterialSTEEL COMP M1020 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1017 OR STEEL COMP 1020 OR STEEL COMP 1023 OR STEEL COMP 1025
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5985-00-099-005442039 INTERCHANGEABLE
Support,antenna
L3harris Technologies, Inc Div Space & Airborne Systems
2810-00-118-970042039 INTERCHANGEABLE
Plug,crankpin
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
1035-00-380-6354271714PC7 INTERCHANGEABLE
Roller
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2510-00-845-011222017533 INTERCHANGEABLE
Shock Absorber,direct Action
General Motors Llc Dba General Motors Llc
6610-00-922-941142039 INTERCHANGEABLE
Housing,indicator
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5935-01-150-396770583 INTERCHANGEABLE
Connector,receptacle,electrical
Meggitt (new Hampshire), Inc
2940-01-223-066042039 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
3040-01-352-502842039 INTERCHANGEABLE
Cam,control
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
5-16X1 1-2 Cooper Industries Inc Campbell Chain/cooper Tools Div (USA)
7906856 General Motors Corp (USA)
5-16X1 1-2 Acco Industries Inc Sub of Babcock Intl Inc (USA)
RR-C-271 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
100A128 Republic Steel Corp Round Chain Div (USA)
42039 PRIMARY Johnson C S Co Inc (USA)
Related Parts
5985-00-099-0054INTERCHANGEABLE
SUPPORT,ANTENNA
42039
2810-00-118-9700INTERCHANGEABLE
PLUG,CRANKPIN
42039
1035-00-380-6354INTERCHANGEABLE
ROLLER
271714PC7
2510-00-845-0112INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
22017533
6610-00-922-9411INTERCHANGEABLE
HOUSING,INDICATOR
42039
5935-01-150-3967INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
70583
2940-01-223-0660INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42039
3040-01-352-5028INTERCHANGEABLE
CAM,CONTROL
42039

Frequently Asked Questions

What is NSN 4010-00-684-3718?

NSN 4010-00-684-3718 is a Link,chain,lap, manufactured by Johnson C S Co Inc, classified under FSC 4010 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4010-00-684-3718?

NSN 4010-00-684-3718 has 6 cross-referenced part numbers: 5-16X1 1-2 (Cooper Industries Inc Campbell Chain/cooper Tools Div), 7906856 (General Motors Corp), 5-16X1 1-2 (Acco Industries Inc Sub of Babcock Intl Inc), RR-C-271 (Federal Specifications Promulgated by General Services Administration Washington DC), 100A128 (Republic Steel Corp Round Chain Div) and 1 more.

What NSN replaces 4010-00-684-3718?

There are 8 known substitutes for 4010-00-684-3718: 5985-00-099-0054, 2810-00-118-9700, 1035-00-380-6354 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42039?

Key specifications for 42039: Material Document and Classification: ASTM A575 ASSN STD ALL MATERIAL RESPONSES; Nondefinitive Spec/std Data: III TYPE; Material Diameter: 0.312 INCHES NOMINAL IN; Overall Length: 2.125 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4010-00-684-3718 still in active supply?

NSN 4010-00-684-3718 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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