The Washer,lock, cataloged under National Stock Number 5310-01-321-8753, 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 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-321-8753 |
| Primary Part Number | 803-1197260 PC 110 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.296 INCHES MAXIMUM IN |
| Material Thickness | 0.234 INCHES NOMINAL IN |
| Departure From Cited Document | AS DIFFERENTIATED BY MATERIAL |
| Material | NICKEL ALLOY K-500 OVERALL |
| Hole Diameter | 0.887 INCHES MINIMUM AND 0.905 INCHES MAXIMUM 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 |
|---|---|
| 803-1197260 PC 110 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| MS51848-17 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-321-8753 is a Washer,lock, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-321-8753 has 1 manufacturer part number on file: 803-1197260 PC 110 (Naval Sea Systems Command).
Key specifications for 803-1197260 PC 110: Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.296 INCHES MAXIMUM IN; Material Thickness: 0.234 INCHES NOMINAL IN. 7 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.