The Knob, cataloged under National Stock Number 5355-01-103-1804, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Professional Electronics Co Inc. Dba Hallicrafters. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5355-01-103-1804 |
| Primary Part Number | 303-SS-BTDM-BSLM-BLACK |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Professional Electronics Co Inc. Dba Hallicrafters |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.344 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.641 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN |
| Skirt Outside Diameter | 1.245 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 1.015 INCHES NOMINAL IN |
| Counterbore Depth | 0.060 INCHES NOMINAL IN |
| Reference Marking | DOT AND LINE |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.138 INCHES SCREW HOLE IN |
| Counterbore Diameter | 1.092 INCHES NOMINAL IN |
| Inside Diameter | 0.254 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | FLARED |
| Attachment Method | SETSCREWS |
| 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 |
|---|---|
| 303-SS-BTDM-BSLM-BLACK PRIMARY | Professional Electronics Co Inc. Dba Hallicrafters (USA) |
| Reference | Meaning |
|---|---|
| 920434-1 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5355-01-103-1804 is a Knob, manufactured by Professional Electronics Co Inc. Dba Hallicrafters, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-103-1804 has 1 manufacturer part number on file: 303-SS-BTDM-BSLM-BLACK (Professional Electronics Co Inc. Dba Hallicrafters).
Key specifications for 303-SS-BTDM-BSLM-BLACK: Distance From Hole Center to Knob/skirt Base: 0.344 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.641 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN; Skirt Outside Diameter: 1.245 INCHES NOMINAL IN. 19 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.