The Link,roller Chain, cataloged under National Stock Number 3020-00-902-7305, 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 Transtechnology Corp Space Ordnance Systems Div Diamond Engineering Opns. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-902-7305 |
| Primary Part Number | 1475INPITCH |
| Item Name | Link,roller Chain |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Transtechnology Corp Space Ordnance Systems Div Diamond Engineering Opns |
| Status | ACTIVE |
| Link Plate Nominal Thickness | 0.0156 INCHES IN |
| Link Style | PIN |
| Link Pin Nominal Diameter | 0.0625 INCHES IN |
| Nominal Pitch Distance | 0.1475 INCHES IN |
| Pin Fastening Method | SPRING CLIP |
| Surface Treatment | PASSIVATE |
| Minimum Tensile Strength | 180 POUNDS PER SQUARE INCH LBS |
| Link Row Quantity | 1 |
| Material | STEEL |
| Link Nominal Width Between Plates | 0.1032 INCHES IN |
| Link Plate Width | 0.138 INCHES NOMINAL 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 |
|---|---|
| 1475INPITCH PRIMARY | Transtechnology Corp Space Ordnance Systems Div Diamond Engineering Opns (USA) |
| CAU4147CL PRIMARY | Diamond Chain Co Div of Amsted Industries Inc (USA) |
| ELC PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 83749-73X9PC12 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 666162-228 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| C418147 | 5/9 Secondary reference Diamond Chain Co Div of Amsted Industries Inc |
| 101422 | 5/9 Secondary reference Gulton Industries Inc Measurement and Control Systems Div |
| 666162-228 | 5/9 Secondary reference Radionics Technologies Inc |
NSN 3020-00-902-7305 is a Link,roller Chain, manufactured by Transtechnology Corp Space Ordnance Systems Div Diamond Engineering Opns, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-902-7305 has 3 manufacturer part numbers on file: 1475INPITCH (Transtechnology Corp Space Ordnance Systems Div Diamond Engineering Opns), CAU4147CL (Diamond Chain Co Div of Amsted Industries Inc), ELC (Roller Bearing Co of America, Inc Div Pic Design).
4 possible matches (shared part number, not a government interchangeability claim): 5895-00-994-3999, 5961-01-030-7245, 6240-01-049-0969. Verify interchangeability with system specifications before substitution.
Key specifications for 1475INPITCH: Link Plate Nominal Thickness: 0.0156 INCHES IN; Link Style: PIN; Link Pin Nominal Diameter: 0.0625 INCHES IN; Nominal Pitch Distance: 0.1475 INCHES IN. 11 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.