The Chain,silent, cataloged under National Stock Number 3020-01-071-6946, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-071-6946 |
| Item Name | Chain,silent |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Link Style | SIDE GUIDES |
| Link Nominal Width | 0.5535 INCHES IN |
| Pin Overall Length | 0.7280 INCHES NOMINAL IN |
| Effective Length | 2.0833 FEET NOMINAL FT |
| Features Provided | ENDLESS CHAIN |
| Nominal Pitch Distance | 0.500 INCHES IN |
| Pin Fastening Method | RIVETED |
| Link Row Quantity | 1 |
| Material | STEEL |
| Link Nominal Width Between Plates | 0.4375 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 |
| Reference | Meaning |
|---|---|
| 75588 | 5/9 Secondary reference U.S. Government activity |
| B75588 | 3/9 Design control — primary reference U.S. Government activity |
| 75588T | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-071-6946 is a Chain,silent, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5342-01-113-2665, 5970-01-375-7086, 4520-01-443-3871. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-071-6946: Link Style: SIDE GUIDES; Link Nominal Width: 0.5535 INCHES IN; Pin Overall Length: 0.7280 INCHES NOMINAL IN; Effective Length: 2.0833 FEET NOMINAL FT. 10 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.