The Knob, cataloged under National Stock Number 5355-00-668-5406, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-668-5406 |
| Primary Part Number | QB71438-2 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div |
| Status | ACTIVE |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Counterbore Depth | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Inside Diameter | 0.128 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Material | PLASTIC POLYAMIDE NYLON |
| Attachment Method | 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 |
|---|---|
| QB71438-2 PRIMARY | Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA) |
| QB71438-2 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| Reference | Meaning |
|---|---|
| QB71438-2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| Q871438-2 | C/1 Advisory reference — outside the item-of-supply concept Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| QB71438-2 | 5/9 Secondary reference Cable Masters |
NSN 5355-00-668-5406 is a Knob, manufactured by Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-668-5406 has 2 manufacturer part numbers on file: QB71438-2 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), QB71438-2 (Aero International, Llc Dba Ams Engineered Solutions).
Key specifications for QB71438-2: Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Style Designator: ROUND; Outside Diameter: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM 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.