The Caster,rigid, cataloged under National Stock Number 5340-01-688-9940, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Hamilton Caster & Mfg. Company. Government technical data includes 19 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-688-9940 |
| Primary Part Number | R-525-P-FB |
| Item Name | Caster,rigid |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Hamilton Caster & Mfg. Company |
| Status | ACTIVE |
| Plate Style | SQUARE |
| Center to Center Minor Distance Between Mounting Slots Along Length | 3.0 INCHES NOMINAL IN |
| Center to Center Major Distance Between Mounting Slots Along Length | 3.625 INCHES NOMINAL IN |
| Center to Center Minor Distance Between Mounting Slots Along Width | 2.625 INCHES NOMINAL IN |
| Wheel Type | SEMIPNEUMATIC TIRE |
| Style Designator | RIGID |
| Caster Plate Mounting Slot Width | 0.375 INCHES NOMINAL IN |
| Caster Plate Width | 4.0 INCHES NOMINAL IN |
| Caster Plate Length | 4.5 INCHES NOMINAL IN |
| Wheel Quantity | 1 |
| Features Provided | BRAKE LOCK |
| Effective Height | 6.5 INCHES NOMINAL IN |
| Center to Center Major Distance Between Mounting Slots Along Width | 3.0 INCHES NOMINAL IN |
| Safe Operating Load Rating | 1000.0 POUNDS NOMINAL LBS |
| Wheel Diameter | 5.0 INCHES NOMINAL IN |
| Wheel Bearing Type | ROLLER |
| Material | STEEL WHEEL RIM |
| Material | STEEL FRAME |
| Material | PLASTIC PHENOLIC TIRE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| R-525-P-FB PRIMARY | The Hamilton Caster & Mfg. Company (USA) |
| 2431T561 | Mcmaster-Carr Supply Co (USA) |
NSN 5340-01-688-9940 is a Caster,rigid, manufactured by The Hamilton Caster & Mfg. Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-688-9940 has 2 manufacturer part numbers on file: R-525-P-FB (The Hamilton Caster & Mfg. Company), 2431T561 (Mcmaster-Carr Supply Co).
Key specifications for R-525-P-FB: Plate Style: SQUARE; Center to Center Minor Distance Between Mounting Slots Along Length: 3.0 INCHES NOMINAL IN; Center to Center Major Distance Between Mounting Slots Along Length: 3.625 INCHES NOMINAL IN; Center to Center Minor Distance Between Mounting Slots Along Width: 2.625 INCHES NOMINAL IN. 19 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.