The Caster,rigid, cataloged under National Stock Number 5340-01-450-3218, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Acme Caster Mfg Enterprises Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-450-3218 |
| Primary Part Number | 656A-3/4 SS |
| Item Name | Caster,rigid |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Acme Caster Mfg Enterprises Inc |
| Status | ACTIVE |
| Plate Style | ROUND |
| Stem Diameter | 0.734 INCHES NOMINAL IN |
| Stem Length | 0.156 INCHES NOMINAL IN |
| Plate Diameter | 1.312 INCHES NOMINAL IN |
| Wheel Type | SOLID |
| Criticality Code Justification | AGAV |
| Style Designator | RIGID |
| Material Document and Classification | QQ-S-766, 300 SERIES FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Caster Plate Mounting Hole Diameter | 0.116 INCHES NOMINAL IN |
| Stem Style | COUNTERSUNK PLAIN |
| Wheel Quantity | 1 |
| Effective Height | 0.750 INCHES NOMINAL IN |
| Safe Operating Load Rating | 100.0 POUNDS NOMINAL LBS |
| Surface Treatment | PASSIVATE OVERALL |
| Wheel Diameter | 0.688 INCHES NOMINAL IN |
| Wheel Bearing Type | BALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 656A-3/4 SS PRIMARY | Acme Caster Mfg Enterprises Inc (USA) |
| ST9M402-1 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 656A-3/4 SS | 5/9 Secondary reference Schatz Bearing Corporation Dba Schatz Bearing Corp |
NSN 5340-01-450-3218 is a Caster,rigid, manufactured by Acme Caster Mfg Enterprises Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-450-3218 has 2 manufacturer part numbers on file: 656A-3/4 SS (Acme Caster Mfg Enterprises Inc), ST9M402-1 (The Boeing Company Div Defense).
Key specifications for 656A-3/4 SS: Plate Style: ROUND; Stem Diameter: 0.734 INCHES NOMINAL IN; Stem Length: 0.156 INCHES NOMINAL IN; Plate Diameter: 1.312 INCHES NOMINAL IN. 17 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.