The Chain,roller, cataloged under National Stock Number 3020-01-279-0243, 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 Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-279-0243 |
| Primary Part Number | 5599379-2 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.2000 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0800 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.4000 INCHES IN |
| Material Document and Classification | ANSI 304 ASSN STD SINGLE MATERIAL RESPONSE |
| Second Chain Link Style | PIN |
| Effective Length | 4.4792 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.8000 INCHES IN |
| First Chain Link Style | ROLLER |
| First Chain Link Plate Width | 0.590 INCHES NOMINAL IN |
| Pin Fastening Method | RIVETED AND SPRING CLIP |
| Surface Treatment | PASSIVATE |
| Second Chain Link Plate Width | 0.510 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.3800 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL COMP 304 |
| First Chain Link Plate Nominal Thickness | 0.0800 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 |
|---|---|
| 5599379-2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 50SS-086LINKS | 3/2 Design control — primary reference U.S. Government activity |
| 5599379 | 7/1 Vendor item drawing reference Naval Sea Systems Command |
NSN 3020-01-279-0243 is a Chain,roller, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-279-0243 has 1 manufacturer part number on file: 5599379-2 (Naval Sea Systems Command).
Key specifications for 5599379-2: Second Chain Link Pin Nominal Diameter: 0.2000 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0800 INCHES IN; First Chain Link Roller Nominal Diameter: 0.4000 INCHES IN; Material Document and Classification: ANSI 304 ASSN STD SINGLE MATERIAL RESPONSE. 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.