The Knob, cataloged under National Stock Number 5355-00-476-2924, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 14 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 | 5355-00-476-2924 |
| Primary Part Number | A577-27 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Shank Diameter | 0.500 INCHES NOMINAL IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.593 INCHES NOMINAL IN |
| Shank Length | 0.406 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.687 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES RECEPTACLE IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Thread Quantity Per Inch | 48 RECEPTACLE |
| Material | STEEL COMP 303 |
| Thread Series Designator | UNS RECEPTACLE |
| 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 |
|---|---|
| A577-27 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| D577-46PC10 | L3 Technologies, Inc. Div L3 Keo (USA) |
NSN 5355-00-476-2924 is a Knob, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-476-2924 has 2 manufacturer part numbers on file: A577-27 (L3 Technologies, Inc. Div L3 Keo), D577-46PC10 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for A577-27: Shank Diameter: 0.500 INCHES NOMINAL IN; Shaft Accommodation Style: ROUND; Overall Thickness: 0.593 INCHES NOMINAL IN; Shank Length: 0.406 INCHES NOMINAL IN. 14 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.