The Washer,lock, cataloged under National Stock Number 5310-01-478-5622, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-478-5622 |
| Primary Part Number | AEW16M010000GD5A81 |
| 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 B 633,FE/ZN,TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 17.83 MILLIMETERS MAXIMUM MM |
| Material Thickness | 2.39 MILLIMETERS MINIMUM MM |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 10.13 MILLIMETERS MINIMUM AND 10.38 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| AEW16M010000GD5A81 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| B18212HRCZ100 | 5/9 Secondary reference U.S. Government activity |
| B18.21.2M | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-478-5622 is a Washer,lock, manufactured by The American Society of Mechanical Engineers, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-478-5622 has 1 manufacturer part number on file: AEW16M010000GD5A81 (The American Society of Mechanical Engineers).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-478-5935, 5310-01-527-8014, 5310-01-569-9599. Verify interchangeability with system specifications before substitution.
Key specifications for AEW16M010000GD5A81: Surface Treatment Document and Classification: ASTM B 633,FE/ZN,TYPE II ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 17.83 MILLIMETERS MAXIMUM MM; Material Thickness: 2.39 MILLIMETERS MINIMUM MM. 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.