The Knob, cataloged under National Stock Number 5355-01-304-0078, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Sci Systems Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-304-0078 |
| Primary Part Number | 5081743-003 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Sci Systems Inc |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.190 INCHES NOMINAL IN |
| Overall Thickness | 0.440 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 40 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| 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 |
|---|---|
| 5081743-003 | Sci Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| RD238-A2B1 | 5/9 Secondary reference Dupree Inc Aerospace Knob Co Div |
| RD238-A2B1 | 3/9 Design control — primary reference U.S. Government activity |
| 5081743 | D/9 Drawing number reference only Sci Systems Inc |
NSN 5355-01-304-0078 is a Knob, manufactured by Sci Systems Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-304-0078 has 1 manufacturer part number on file: 5081743-003 (Sci Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-306-0564. Verify interchangeability with system specifications before substitution.
Key specifications for 5081743-003: Distance From Hole Center to Knob/skirt Base: 0.190 INCHES NOMINAL IN; Overall Thickness: 0.440 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 0.500 INCHES NOMINAL IN. 12 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.