The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-652-1856, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-652-1856 |
| Primary Part Number | NA0033-050 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Washer Outside Diameter | 8.3 MILLIMETERS MINIMUM MM |
| Width Across Flats | 5.88 MILLIMETERS MINIMUM AND 6.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | MJ |
| Thread Pitch in Millimeters | 0.8 |
| Thread Pitch Diameters | +5.0 TO 5.6 MILLIMETERS MM |
| Washer Thickness | 0.6 MILLIMETERS MINIMUM MM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 5.0 MILLIMETERS MM |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | HEXAGON |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| NA0033-050 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| NA0033-050 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-652-1856 is a Nut,self-Locking,extended Washer, manufactured by Lockheed Martin Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-652-1856 has 1 manufacturer part number on file: NA0033-050 (Lockheed Martin Corporation).
Key specifications for NA0033-050: Overall Height: 5.0 MILLIMETERS MAXIMUM MM; Washer Outside Diameter: 8.3 MILLIMETERS MINIMUM MM; Width Across Flats: 5.88 MILLIMETERS MINIMUM AND 6.00 MILLIMETERS MAXIMUM MM; Surface Treatment Document and Classification: AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 13 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.