The Washer,spring Tension, cataloged under National Stock Number 5310-01-063-9921, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-063-9921 |
| Primary Part Number | 5189730-006 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Diameter | 1.004 INCHES NOMINAL1.004 INCHES NOMINAL IN |
| Material Thickness | 0.0095 INCHES MINIMUM AND 0.0095 INCHES MINIMUM AND 0.0115 INCHES MAXIMUM0.0115 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.780 INCHES NOMINAL0.780 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 |
|---|---|
| W1004-011S | Associated Spring Corp Div of the Barnes Group Inc Dallas Div (USA) |
| 5189730-006 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2051728-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-063-9921 is a Washer,spring Tension, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-063-9921 has 2 manufacturer part numbers on file: W1004-011S (Associated Spring Corp Div of the Barnes Group Inc Dallas Div), 5189730-006 (Naval Sea Systems Command).
Key specifications for 5189730-006: Overall Height: 0.071 INCHES NOMINAL0.071 INCHES NOMINAL IN; Outside Diameter: 1.004 INCHES NOMINAL1.004 INCHES NOMINAL IN; Material Thickness: 0.0095 INCHES MINIMUM AND 0.0095 INCHES MINIMUM AND 0.0115 INCHES MAXIMUM0.0115 INCHES MAXIMUM IN; Material: STEEL COMP 302 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.