The Washer,spring Tension, cataloged under National Stock Number 5310-00-593-8929, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Tyco Fire Products Lp. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-593-8929 |
| Primary Part Number | 20-03057 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Outside Diameter | 0.688 INCHES NOMINAL IN |
| Material Thickness | 0.031 INCHES NOMINAL IN |
| Material | STEEL 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 |
|---|---|
| V3057 | Portland Valve Llc (USA) |
| V3057 | Tyco Fire Products Lp (USA) |
| V3531PC18 | Tyco Fire Products Lp (USA) |
| V5561PC19 | Tyco Fire Products Lp (USA) |
| 20-03057 PRIMARY | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| V-3057 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-593-8929 is a Washer,spring Tension, manufactured by Tyco Fire Products Lp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-593-8929 has 5 manufacturer part numbers on file: V3057 (Portland Valve Llc), V3057 (Tyco Fire Products Lp), V3531PC18 (Tyco Fire Products Lp), V5561PC19 (Tyco Fire Products Lp), 20-03057 (Tyco Fire Products Lp).
Key specifications for 20-03057: Overall Height: 0.156 INCHES NOMINAL IN; Outside Diameter: 0.688 INCHES NOMINAL IN; Material Thickness: 0.031 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 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.