The Washer,lock, cataloged under National Stock Number 5310-01-200-2096, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-200-2096 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Criticality Code Justification | ZZZY |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | FED-66 COMP 1060 TO 1080 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.923 INCHES NOMINAL IN |
| Material Thickness | 0.203 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.635 INCHES MINIMUM AND 0.650 INCHES MAXIMUM IN |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| FF-W-84 CL A,STY 2,5/8IN | 3/1 Design control — primary reference Naval Inventory Control Point Mechanicsburg |
| 76917-64X1 PC 13 | 5/1 Secondary reference U.S. Government activity |
| FF-W-84 | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-200-2096 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-200-2096: Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Criticality Code Justification: ZZZY; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: FED-66 COMP 1060 TO 1080 FED STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.