The Nut,self-Locking,assembled Washe, cataloged under National Stock Number 5310-01-030-9108, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-030-9108 |
| Primary Part Number | A15D3551-1 |
| Item Name | Nut,self-Locking,assembled Washe |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Washer Outside Diameter | 0.460 INCHES MAXIMUM IN |
| Width Across Flats | 0.274 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS-5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.077 INCHES NOMINAL FIRST END IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.282 INCHES NOMINAL FIRST END IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Countersink Angle | 45.0 DEGREES NOMINAL FIRST END |
| Nut Style | FLAT WITH TURNED UP EDGE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| TLN1000C-4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| A15D3551-1 PRIMARY | The Boeing Company (USA) |
| HW17C-4 | Huck International, Inc (USA) |
| HW17C-4 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| A15D355-1 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
| TLN1000C-4 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-030-9108 is a Nut,self-Locking,assembled Washe, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-030-9108 has 4 manufacturer part numbers on file: TLN1000C-4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), A15D3551-1 (The Boeing Company), HW17C-4 (Huck International, Inc), HW17C-4 (Howmet Global Fastening Systems Inc).
Key specifications for A15D3551-1: Overall Height: 0.281 INCHES NOMINAL IN; Washer Outside Diameter: 0.460 INCHES MAXIMUM IN; Width Across Flats: 0.274 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS-2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 16 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.