The Knob, cataloged under National Stock Number 5355-01-256-1846, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Acr Electronics, Inc. Dba Acr Electronics Inc. Government technical data includes 12 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 | 5355-01-256-1846 |
| Primary Part Number | A1-18-1057 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Acr Electronics, Inc. Dba Acr Electronics Inc |
| Status | ACTIVE |
| Shank Diameter | 0.497 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 1.032 INCHES NOMINAL IN |
| Shank Length | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Style Designator | FLUTED FOILS |
| Inside Diameter | 0.379 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Width | 1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Material | PLASTIC POLYCARBONATE |
| Attachment Method | HOLE |
| Fluted Foil Quantity | 8 |
| 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 |
|---|---|
| A1-18-1057 PRIMARY | Acr Electronics, Inc. Dba Acr Electronics Inc (USA) |
NSN 5355-01-256-1846 is a Knob, manufactured by Acr Electronics, Inc. Dba Acr Electronics Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-256-1846 has 1 manufacturer part number on file: A1-18-1057 (Acr Electronics, Inc. Dba Acr Electronics Inc).
Key specifications for A1-18-1057: Shank Diameter: 0.497 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Shaft Accommodation Style: ROUND; Overall Thickness: 1.032 INCHES NOMINAL IN; Shank Length: 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN. 12 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.