The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-559-5973, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kirby Morgan Dive Systems Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-559-5973 |
| Primary Part Number | 530-028 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kirby Morgan Dive Systems Inc |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Surface Treatment | PASSIVATE OVERALL EXCEPT INSERT |
| Material | STEEL CORROSION RESISTING OVERALL EXCEPT INSERT |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 530-028 | Polar Safety Oy (FIN) |
| 530-028 PRIMARY | Kirby Morgan Dive Systems Inc (USA) |
| 530-028 | Pacific Commercial Diving Supply Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 5310PL0719841 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10336804 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-559-5973 is a Nut,self-Locking,hexagon, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-559-5973 has 3 manufacturer part numbers on file: 530-028 (Polar Safety Oy), 530-028 (Kirby Morgan Dive Systems Inc), 530-028 (Pacific Commercial Diving Supply Pty Ltd).
Key specifications for 530-028: Thread Direction: RIGHT-HAND; Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT; Surface Treatment: PASSIVATE OVERALL EXCEPT INSERT; Part Name Assigned by Controlling Agency: LOCK NUT. 5 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.