The Knob, cataloged under National Stock Number 5355-01-059-4899, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 18 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 | 5355-01-059-4899 |
| Primary Part Number | PWA8518-19 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Shank Diameter | 0.688 INCHES NOMINAL IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.500 INCHES NOMINAL IN |
| Skirt Outside Diameter | 1.000 INCHES NOMINAL IN |
| Shank Length | 0.516 INCHES NOMINAL IN |
| Style Designator | FLUTED FOILS |
| Nominal Thread Size | 0.375 INCHES STUD IN |
| Inside Diameter | 0.492 INCHES NOMINAL IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | SMOOTH |
| Skirt Design | NONDETACHABLE |
| Width | 2.500 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 16 STUD |
| Material | IRON CAST |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD |
| Skirt Style | RING |
| Attachment Method | STUD |
| Fluted Foil Quantity | 4 |
| 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 |
|---|---|
| PWA8518-19 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| PWA8518 | Berry, John Dba Berry Manufacturing (USA) |
NSN 5355-01-059-4899 is a Knob, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-059-4899 has 2 manufacturer part numbers on file: PWA8518-19 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), PWA8518 (Berry, John Dba Berry Manufacturing).
Key specifications for PWA8518-19: Shank Diameter: 0.688 INCHES NOMINAL IN; Shaft Accommodation Style: ROUND; Overall Thickness: 0.500 INCHES NOMINAL IN; Skirt Outside Diameter: 1.000 INCHES NOMINAL IN. 18 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.