The Washer,spring Tension, cataloged under National Stock Number 5310-01-284-9730, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Barnes Group Inc.. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-284-9730 |
| Primary Part Number | U500-0170 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Barnes Group Inc. |
| Status | ACTIVE |
| Outside Diameter | 0.795 INCHES NOMINAL IN |
| Material Thickness | 0.017 INCHES NOMINAL IN |
| Material | STEEL COMP 1075 OVERALL |
| Hole Diameter | 0.531 INCHES NOMINAL IN |
| 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 |
|---|---|
| U500-0170 PRIMARY | Barnes Group Inc. (USA) |
| 9600894-001 | Transdigm Inc (USA) |
| Reference | Meaning |
|---|---|
| U500-0170 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-284-9730 is a Washer,spring Tension, manufactured by Barnes Group Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-284-9730 has 2 manufacturer part numbers on file: U500-0170 (Barnes Group Inc.), 9600894-001 (Transdigm Inc).
Key specifications for U500-0170: Overall Height: 0.098 INCHES NOMINAL IN; Outside Diameter: 0.795 INCHES NOMINAL IN; Material Thickness: 0.017 INCHES NOMINAL IN; Material: STEEL COMP 1075 OVERALL. 4 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.