The Knob, cataloged under National Stock Number 5355-01-454-0519, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-454-0519 |
| Primary Part Number | 1257AS124-1 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.375 INCHES NOMINAL IN |
| Style Designator | BALL |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Gripping Surface Condition | GRIP AID |
| Screw Drive Type | SLOT |
| Thread Quantity Per Inch | 40 SCREW HOLE |
| Material | STEEL |
| 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 |
|---|---|
| 1257AS124-1 | Products Support, Llc Dba Vitesse Systems - Jessup, Md (USA) |
| 1257AS124-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5355-01-454-0519 is a Knob, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-454-0519 has 2 manufacturer part numbers on file: 1257AS124-1 (Products Support, Llc Dba Vitesse Systems - Jessup, Md), 1257AS124-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1257AS124-1: Distance From Hole Center to Knob/skirt Base: 0.375 INCHES NOMINAL IN; Style Designator: BALL; Outside Diameter: 0.750 INCHES NOMINAL IN; Setscrew Hole Quantity: 2. 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.