The Dial,scale, cataloged under National Stock Number 5355-01-030-5728, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-030-5728 |
| Primary Part Number | 1020B0621 |
| Item Name | Dial,scale |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Style Designator | ROUND |
| Mounting Hole Diameter | 0.375 INCHES NOMINAL IN |
| Outside Diameter | 1.500 INCHES NOMINAL IN |
| Scale Type | LINEAR FIRST SCALE |
| Scale Type | LINEAR SECOND SCALE |
| Scale Division Quantity | 10 SECOND SCALE |
| Scale Division Quantity | 10 FIRST SCALE |
| Surface Treatment | ANODIZE DIAL |
| Material | ALUMINUM ALLOY 2024 DIAL |
| Attachment Method | CENTER HOLE |
| 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 |
|---|---|
| 1020B0621 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 1020B0621 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 5355-01-030-5728 is a Dial,scale, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-030-5728 has 1 manufacturer part number on file: 1020B0621 (Lockheed Martin Corporation Div Rms).
Key specifications for 1020B0621: Style Designator: ROUND; Mounting Hole Diameter: 0.375 INCHES NOMINAL IN; Outside Diameter: 1.500 INCHES NOMINAL IN; Scale Type: LINEAR FIRST SCALE. 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.