The Washer,spring Tension, cataloged under National Stock Number 5310-00-367-7031, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Associated Spring Us, Llc Dba Associated Spring Div Milwaukee. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-367-7031 |
| Primary Part Number | W5817-055 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Associated Spring Us, Llc Dba Associated Spring Div Milwaukee |
| Status | ACTIVE |
| Outside Diameter | 5.817 INCHES NOMINAL IN |
| Material Thickness | 0.055 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 4.530 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 |
|---|---|
| 22RK94 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| W5817-055 | Barnes Group Inc. (USA) |
| W5817-055 PRIMARY | Associated Spring Us, Llc Dba Associated Spring Div Milwaukee (USA) |
| D304821-53 | Control Flow, Inc. Dba Control Flow Inc (USA) |
| Reference | Meaning |
|---|---|
| W5817-055 | C/1 Advisory reference — outside the item-of-supply concept Barnes Group Inc |
| D304821-53 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 5310-00-367-7031 is a Washer,spring Tension, manufactured by Associated Spring Us, Llc Dba Associated Spring Div Milwaukee, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-367-7031 has 4 manufacturer part numbers on file: 22RK94 (W.w. Grainger, Inc. Div Government Sales Division), W5817-055 (Barnes Group Inc.), W5817-055 (Associated Spring Us, Llc Dba Associated Spring Div Milwaukee), D304821-53 (Control Flow, Inc. Dba Control Flow Inc).
Key specifications for W5817-055: Overall Height: 0.440 INCHES NOMINAL IN; Outside Diameter: 5.817 INCHES NOMINAL IN; Material Thickness: 0.055 INCHES NOMINAL IN; Material: STEEL 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.