The Chain,roller, cataloged under National Stock Number 3020-01-232-8151, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-232-8151 |
| Primary Part Number | 29203-54 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.1560 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0600 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.3120 INCHES IN |
| Pin Overall Length | 0.6700 INCHES NOMINAL IN |
| Second Chain Link Style | PIN |
| Effective Length | 4.5000 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.3120 INCHES IN |
| First Chain Link Style | ROLLER |
| End Connection Style | PIN |
| First Chain Link Plate Width | 0.410 INCHES NOMINAL IN |
| Pin Fastening Method | RIVETED |
| Second Chain Link Plate Width | 0.475 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.3125 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.0600 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 29203-54 PRIMARY | Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services (USA) |
| Reference | Meaning |
|---|---|
| 29203 54IN R0LL | C/1 Advisory reference — outside the item-of-supply concept Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services |
NSN 3020-01-232-8151 is a Chain,roller, manufactured by Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-232-8151 has 1 manufacturer part number on file: 29203-54 (Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services).
Key specifications for 29203-54: Second Chain Link Pin Nominal Diameter: 0.1560 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0600 INCHES IN; First Chain Link Roller Nominal Diameter: 0.3120 INCHES IN; Pin Overall Length: 0.6700 INCHES NOMINAL IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.