The Caster,rigid, cataloged under National Stock Number 5340-01-177-3978, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Darnell Corporation. Government technical data includes 21 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-177-3978 |
| Primary Part Number | 63-1/2-20-TRPR |
| Item Name | Caster,rigid |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Darnell Corporation |
| Status | ACTIVE |
| Plate Style | RECTANGULAR |
| Tread Width | 1.250 INCHES NOMINAL IN |
| Wheel Type | BUILT UP |
| Coating Method | PLATED BODY |
| Coating Method | PLATED PLATE |
| Style Designator | RIGID |
| Caster Plate Mounting Hole Diameter | 0.266 INCHES NOMINAL IN |
| Caster Plate Width | 2.500 INCHES NOMINAL IN |
| Caster Plate Length | 3.625 INCHES NOMINAL IN |
| Wheel Quantity | 1 |
| Effective Height | 4.750 INCHES NOMINAL IN |
| Safe Operating Load Rating | 400.0 POUNDS NOMINAL LBS |
| Center to Center Distance Between Bolt Holes Along Length | 2.875 INCHES NOMINAL IN |
| Surface Treatment | ZINC PLATE |
| Surface Treatment | ZINC BODY |
| Center to Center Distance Between Bolt Holes Along Width | 1.750 INCHES NOMINAL IN |
| Wheel Diameter | 3.500 INCHES MINIMUM IN |
| Wheel Bearing Type | ROLLER |
| Material | STEEL BODY |
| Material | PLASTIC PHENOLIC TREAD |
| Material | STEEL PLATE |
| 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 |
|---|---|
| 63-1/2-20-TRPR PRIMARY | Darnell Corporation (USA) |
| B47484 | O T S I (USA) |
| Reference | Meaning |
|---|---|
| 63-1/2-20-TPR | 5/9 Secondary reference Darnell Corporation |
| 20-63 1/2-TRPR-BZ | 5/9 Secondary reference Darnell Corporation |
| 16-63 1/2TSPR-BZ | 5/9 Secondary reference Darnell Corporation |
| 20-63 1/2 TRPR- BZ | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 20-63 1/2 TRPR | 5/9 Secondary reference Darnell Corporation |
NSN 5340-01-177-3978 is a Caster,rigid, manufactured by Darnell Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-177-3978 has 2 manufacturer part numbers on file: 63-1/2-20-TRPR (Darnell Corporation), B47484 (O T S I).
Key specifications for 63-1/2-20-TRPR: Plate Style: RECTANGULAR; Tread Width: 1.250 INCHES NOMINAL IN; Wheel Type: BUILT UP; Coating Method: PLATED BODY. 21 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.