The Washer,split, cataloged under National Stock Number 5310-00-180-5329, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems (operations) Limited. Government technical data includes 9 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 | 5310-00-180-5329 |
| Primary Part Number | 3330-4320-001 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems (operations) Limited |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance Across Split Opening | 0.031 INCHES NOMINAL IN |
| Style Designator | SPLIT |
| Material Document and Classification | QQ-W-412 TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 1 OR STEEL COMP 2 OVERALL |
| Hole Diameter | 0.125 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 |
|---|---|
| 3330-4320-001 PRIMARY | Bae Systems (operations) Limited (GBR) |
| 3330-4320-001 PRIMARY | Bae Systems Integrated Defense Solutions Inc. (USA) |
NSN 5310-00-180-5329 is a Washer,split, manufactured by Bae Systems (operations) Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-180-5329 has 2 manufacturer part numbers on file: 3330-4320-001 (Bae Systems (operations) Limited), 3330-4320-001 (Bae Systems Integrated Defense Solutions Inc.).
Key specifications for 3330-4320-001: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance Across Split Opening: 0.031 INCHES NOMINAL IN; Style Designator: SPLIT; Material Document and Classification: QQ-W-412 TYPE 1 FED SPEC 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.