PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40A1S4Link,roller Chain

Jeffrey Chain L.p. · NSN 3020-00-192-6799 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-192-6799 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-192-6799. Primary manufacturer part number: 40A1S4.
Features
  • Link,roller Chain — FSC 3020
  • Nominal Pitch Distance: 0.500 INCHES IN
  • Link Row Quantity: 1
  • Link Roller Nominal Diameter: 0.3125 INCHES IN
  • Material: STEEL
  • Link Plate Nominal Thickness: 0.0600 INCHES IN
  • Departure From Cited Designator: ROLLER LINK FOR CHAIN NO. 40-IRCA
  • Minimum Tensile Strength: 3125 POUNDS PER SQUARE INCH LBS
Applications
  • Applications requiring Steel construction
General Description

The Link,roller Chain, cataloged under National Stock Number 3020-00-192-6799, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Jeffrey Chain L.p.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 15 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
NSN3020-00-192-6799
Primary Part Number40A1S4
Item NameLink,roller Chain
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerJeffrey Chain L.p.
StatusCANCELLED
Nominal Pitch Distance0.500 INCHES IN
Link Row Quantity1
Link Roller Nominal Diameter0.3125 INCHES IN
MaterialSTEEL
Link Plate Nominal Thickness0.0600 INCHES IN
Departure From Cited DesignatorROLLER LINK FOR CHAIN NO. 40-IRCA
Minimum Tensile Strength3125 POUNDS PER SQUARE INCH LBS
Link Nominal Width Between Plates0.3125 INCHES IN
Link StyleROLLER
Link Plate Width0.475 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6640-00-176-5245 INTERCHANGEABLE
Pipetting Machine,semi-Automatic
3020-00-196-080340SS INTERCHANGEABLE
Chain,roller
Diamond Chain Co Div of Amsted Industries Inc
5133-00-241-5868 INTERCHANGEABLE
Drill,twist
4730-00-278-6136 INTERCHANGEABLE
Reducer,tube
5930-00-419-7328010-1802 INTERCHANGEABLE
Switch,thermostatic
Ranco Inc Ranco Controls Div
3020-00-541-34185152992 INTERCHANGEABLE
Chain,roller
Rolls-Royce Solutions America Inc
5825-00-544-593166346 INTERCHANGEABLE
Cap,pin
L3harris Technologies, Inc Div Space & Airborne Systems
6605-00-659-877566-346 INTERCHANGEABLE
Counter Assembly,electronic,digi
Lockheed Martin Corporation Div Rms - Mitchel Field
4730-00-950-3590 INTERCHANGEABLE
Reducer,tube
4730-00-950-3592 INTERCHANGEABLE
Reducer,tube
Cross-Reference Index
Part NumberManufacturer
K1-6505-999617ALT1PCE3LINK Naval Ship Systems Command (USA)
66346 Roper Lawn Products (USA)
40RL Whitney Chain Operation Power Transmission Div Dresser Industries Inc (USA)
RC40-1RL Fmc Corp Link-Belt Div (USA)
RC40-2RL Fmc Corp Link-Belt Div (USA)
3063-09ALT1PCE3LINK Electric Boat Corporation Div General Dynamics Electric Boat (USA)
40RL Altra Industrial Motion Corp. (USA)
RC40RL Fmc Corp Link-Belt Div (USA)
6335-283PCB4 Portsmouth Naval Shipyard (USA)
D40-1R Rexnord Holdings Inc (USA)
40RL Union Chain Div of Ust Inc (USA)
228-65-0980ALT11PCB4 Naval Ship Systems Command (USA)
K1-6505-999617ALT1PCE3LINK Naval Sea Systems Command (USA)
228-65-0980ALT11PCB4 Naval Sea Systems Command (USA)
317-6505-771756REVAPC5LINK Naval Ship Systems Command (USA)
MS421-40-1RCA Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
317-6505-771756REVAPC5LINK Naval Sea Systems Command (USA)
SINGLE66RL Diamond Chain Co Div of Amsted Industries Inc (USA)
RC40RL Link-Belt Cranes, L.p., Lllp (USA)
40RL Jeffrey Chain L.p. (USA)
Related Parts
6640-00-176-5245INTERCHANGEABLE
PIPETTING MACHINE,SEMI-AUTOMATIC
3020-00-196-0803INTERCHANGEABLE
CHAIN,ROLLER
40SS
5133-00-241-5868INTERCHANGEABLE
DRILL,TWIST
4730-00-278-6136INTERCHANGEABLE
REDUCER,TUBE
5930-00-419-7328INTERCHANGEABLE
SWITCH,THERMOSTATIC
010-1802
3020-00-541-3418INTERCHANGEABLE
CHAIN,ROLLER
5152992
5825-00-544-5931INTERCHANGEABLE
CAP,PIN
66346
6605-00-659-8775INTERCHANGEABLE
COUNTER ASSEMBLY,ELECTRONIC,DIGI
66-346
4730-00-950-3590INTERCHANGEABLE
REDUCER,TUBE
4730-00-950-3592INTERCHANGEABLE
REDUCER,TUBE
5330-01-032-8525INTERCHANGEABLE
GASKET
5340-01-161-6112INTERCHANGEABLE
LATCH SET,RIM
401R

Frequently Asked Questions

What is NSN 3020-00-192-6799?

NSN 3020-00-192-6799 is a Link,roller Chain, manufactured by Jeffrey Chain L.p., classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-192-6799?

NSN 3020-00-192-6799 has 23 cross-referenced part numbers: K1-6505-999617ALT1PCE3LINK (Naval Ship Systems Command), 66346 (Roper Lawn Products), 40RL (Whitney Chain Operation Power Transmission Div Dresser Industries Inc), RC40-1RL (Fmc Corp Link-Belt Div), RC40-2RL (Fmc Corp Link-Belt Div) and 18 more.

What NSN replaces 3020-00-192-6799?

There are 12 known substitutes for 3020-00-192-6799: 6640-00-176-5245, 3020-00-196-0803, 5133-00-241-5868 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40A1S4?

Key specifications for 40A1S4: Nominal Pitch Distance: 0.500 INCHES IN; Link Row Quantity: 1; Link Roller Nominal Diameter: 0.3125 INCHES IN; Material: STEEL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-192-6799 still in active supply?

NSN 3020-00-192-6799 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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