The Knob, cataloged under National Stock Number 5355-01-027-3171, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5355-01-027-3171 |
| Primary Part Number | ST5M1434-001 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.187 INCHES MAXIMUM IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.495 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 0.690 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Counterbore Depth | 0.026 INCHES MINIMUM IN |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.485 INCHES MINIMUM IN |
| Inside Diameter | 0.268 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Color | GRAY/GREY |
| 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 |
|---|---|
| ST5M1434-001 | The Boeing Company Div Defense (USA) |
| 071A7MC | Electronic Hardware Corp Dba Electronic Hardware Corp (USA) |
| Reference | Meaning |
|---|---|
| 071A7MC | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-01-027-3171 is a Knob, manufactured by The Boeing Company Div Defense, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-027-3171 has 2 manufacturer part numbers on file: ST5M1434-001 (The Boeing Company Div Defense), 071A7MC (Electronic Hardware Corp Dba Electronic Hardware Corp).
Key specifications for ST5M1434-001: Distance From Hole Center to Knob/skirt Base: 0.187 INCHES MAXIMUM IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.495 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN; Style Designator: ROUND. 16 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.