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Roller Chain

NSN: 3020-00-081-1723 | Model: MILSTD421-35IRCA
ITAR Registered seal

A flexible mechanical device consisting of one or more rows of links used for conveying or power transmission. The link side plates are flat or offset and are spaced apart by rollers, bushings and/or pins. The chain mates with a sprocket with an articulating action. The non-rotating bushing type chain is limited to that designated by the American national standards institute as roller chain". Excludes chain, block.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Effective Length
8.9375 feet
Link Row Quantity
First Chain Link Style
Second Chain Link Style
Pin Fastening Method
First Chain Link Plate Width
0.356 inches
First Chain Link Plate Thickness
0.0500 inches
First Chain Link Roller Diameter
0.2000 inches
First Chain Link Width Between Plates
0.1870 inches
Second Chain Link Plate Width
0.307 inches
Second Chain Link Plate Thickness
0.0500 inches
Second Chain Link Pin Diameter
0.1410 inches
Second Chain Link Width Between Plates
0.1870 inches
Min. Tensile Strength (psi)
1760 pounds per square inch

Pricing and Availability

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NSN 3020-00-081-1723 Datasheet

Supply Class (FSC):
Transmission Chain Sprockets Pulleys Gears
Cross Reference:
  • MILSTD421-35IRCA
  • MILSTD421-35IRCA
  • MILSTD421-35IRCA
  • MILSTD421-35IRCA
  • MILSTD421-35IRCA
  • MILSTD421-35IRCA
  • MILSTD421-35IRCA
Cage Codes:
  • Standardization Division (CAGE 83642)
Schedule B & Trade:
  • Schedule B: 7315110000 (NAICS 332618)

    Roller chain of iron or steel

  • SITC: 74831

    Roller chain

  • End Use: 12300

    Finished metal shapes


N - Indicates there is no data in the humors and the nsn is in a fsc not generally suspected of containing hazardous materials.


A - Item does not contain precious metal.


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    093940 - Chains belting/sprocket

  • WCC:

    576 - Metal and metal products, nos, (less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LTL:

    S - 60.0

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability
    This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $43.38 to $72.29..
Does NSN 3020-00-081-1723 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army
What is the NIIN of NSN 3020-00-081-1723?
000811723 or 00-081-1723
Does NSN 3020-00-081-1723 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3020-00-081-1723?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963