The Washer,lock, cataloged under National Stock Number 5310-01-589-6935, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Boeing Defence Australia Ltd. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-589-6935 |
| Primary Part Number | BACW10EC4M |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Boeing Defence Australia Ltd |
| Status | ACTIVE |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | QQ-N-286, FORM 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.487 INCHES MAXIMUM IN |
| Material Thickness | 0.062 INCHES MINIMUM IN |
| Material | NICKEL ALLOY K-500 AND NICKEL ALLOY 502 OVERALL |
| Hole Diameter | 0.252 INCHES MINIMUM AND 0.260 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 |
|---|---|
| BACW10EC4M | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| BACW10EC4M | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-589-6935 is a Washer,lock, manufactured by Boeing Defence Australia Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-589-6935 has 1 manufacturer part number on file: BACW10EC4M (Boeing Defence Australia Ltd).
Key specifications for BACW10EC4M: Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: QQ-N-286, FORM 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.487 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.