The Washer,lock, cataloged under National Stock Number 5310-01-596-3750, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-596-3750 |
| Primary Part Number | AEW20X010000BD8A21 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT EXTERNAL TEETH |
| Material Document and Classification | ASTM F436M, TYPE 1, CARBON STEEL ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.195 INCHES MINIMUM AND 0.204 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 |
|---|---|
| AEW20X010000BD8A21 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| 853-2010 | 5/1 Secondary reference Cummins Power Generation Inc. |
NSN 5310-01-596-3750 is a Washer,lock, manufactured by The American Society of Mechanical Engineers, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-596-3750 has 1 manufacturer part number on file: AEW20X010000BD8A21 (The American Society of Mechanical Engineers).
Key specifications for AEW20X010000BD8A21: Surface Treatment Document and Classification: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT EXTERNAL TEETH; Material Document and Classification: ASTM F436M, TYPE 1, CARBON STEEL ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN. 8 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.