The Knob, cataloged under National Stock Number 5355-01-378-1072, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-378-1072 |
| Primary Part Number | DAA7221D050-001 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 1.000 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 1.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES SCREW HOLE IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Gripping Surface Condition | GRIP AID |
| Thread Quantity Per Inch | 28 SCREW HOLE |
| Thread Series Designator | UNF SCREW HOLE |
| Attachment Method | SCREW ON |
| 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 |
|---|---|
| DAA7221D050-001 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
NSN 5355-01-378-1072 is a Knob, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-378-1072 has 1 manufacturer part number on file: DAA7221D050-001 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for DAA7221D050-001: Shaft Accommodation Style: ROUND; Overall Thickness: 1.000 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 1.500 INCHES NOMINAL IN. 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.