The Chain,silent, cataloged under National Stock Number 3020-01-301-9925, 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 Emerson Power Transmission Corporation Div Ept. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-301-9925 |
| Primary Part Number | HV-304-72 PITCHES |
| Item Name | Chain,silent |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Power Transmission Corporation Div Ept |
| Status | ACTIVE |
| Link Style | SIDE GUIDES |
| Link Nominal Width | 1.0550 INCHES IN |
| Pin Overall Length | 1.1470 INCHES NOMINAL IN |
| Effective Length | 0.7500 FEET NOMINAL FT |
| Features Provided | ENDLESS CHAIN |
| Nominal Pitch Distance | 0.375 INCHES IN |
| Pin Fastening Method | RIVETED |
| Link Row Quantity | 1 |
| Material | STEEL |
| Link Nominal Width Between Plates | 0.9370 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 |
|---|---|
| HV-304-72 PITCHES PRIMARY | Emerson Power Transmission Corporation Div Ept (USA) |
| Reference | Meaning |
|---|---|
| 9008908-20 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-301-9925 is a Chain,silent, manufactured by Emerson Power Transmission Corporation Div Ept, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-301-9925 has 1 manufacturer part number on file: HV-304-72 PITCHES (Emerson Power Transmission Corporation Div Ept).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-338-2984, 3020-01-362-0997. Verify interchangeability with system specifications before substitution.
Key specifications for HV-304-72 PITCHES: Link Style: SIDE GUIDES; Link Nominal Width: 1.0550 INCHES IN; Pin Overall Length: 1.1470 INCHES NOMINAL IN; Effective Length: 0.7500 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.