The Washer,lock, cataloged under National Stock Number 5310-01-323-1609, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Integrated Defense Solutions Inc.. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-323-1609 |
| Primary Part Number | 3345-3012-001 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Integrated Defense Solutions Inc. |
| Status | ACTIVE |
| Style Designator | SPLIT DOUBLE HELICAL RING |
| Material Document and Classification | QQ-B-750,COMP A,HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.244 INCHES MAXIMUM IN |
| Material Thickness | 0.009 INCHES MAXIMUM IN |
| Color | BRONZE OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.129 INCHES MINIMUM AND 0.141 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 |
|---|---|
| 3345-3012-001 PRIMARY | Bae Systems Integrated Defense Solutions Inc. (USA) |
| 3345-TAB | Din Fasteners Ltd. T/a Defence Fasteners (GBR) |
NSN 5310-01-323-1609 is a Washer,lock, manufactured by Bae Systems Integrated Defense Solutions Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-323-1609 has 2 manufacturer part numbers on file: 3345-3012-001 (Bae Systems Integrated Defense Solutions Inc.), 3345-TAB (Din Fasteners Ltd. T/a Defence Fasteners).
Key specifications for 3345-3012-001: Overall Height: 0.155 INCHES NOMINAL IN; Style Designator: SPLIT DOUBLE HELICAL RING; Material Document and Classification: QQ-B-750,COMP A,HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.244 INCHES MAXIMUM 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.