The Knob, cataloged under National Stock Number 5355-00-644-2250, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-644-2250 |
| Primary Part Number | A104931-2 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.468 INCHES NOMINAL IN |
| Shaft Accommodation Style | ROUND |
| Length | 1.812 INCHES NOMINAL IN |
| Overall Thickness | 0.688 INCHES NOMINAL IN |
| Skirt Outside Diameter | 0.688 INCHES NOMINAL IN |
| Style Designator | ROUND WITH FIN LEVER |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Reference Marking | ARROW |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.138 INCHES SCREW HOLE IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Pointer Design | NONDETACHABLE |
| Gripping Surface Condition | SMOOTH |
| Color | BLACK |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | CROSS RECESS TYPE 1 |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | RING |
| 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 |
NSN 5355-00-644-2250 is a Knob, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-644-2250 has 2 manufacturer part numbers on file: A104931-2 (Raytheon Company Dba Raytheon Co), B413C21 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for A104931-2: Distance From Hole Center to Knob/skirt Base: 0.468 INCHES NOMINAL IN; Shaft Accommodation Style: ROUND; Length: 1.812 INCHES NOMINAL IN; Overall Thickness: 0.688 INCHES NOMINAL IN. 21 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.