The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-468-6661, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Whittet-Higgins Company. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-468-6661 |
| Primary Part Number | PN-10 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Whittet-Higgins Company |
| Status | ACTIVE |
| Thread Pitch Diameters | +1.9309 TO 1.9354 INCHES IN |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.967 INCHES IN |
| Nut Diameter | 2.673 INCHES MINIMUM AND 2.693 INCHES MAXIMUM IN |
| Drive Point Depth | 0.188 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Thickness | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Drive Point Quantity | 8 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| PN-10 PRIMARY | Whittet-Higgins Company (USA) |
| 528-7378786 PC55 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7378786 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5310-01-468-6661 is a Nut,self-Locking,round, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-468-6661 has 2 manufacturer part numbers on file: PN-10 (Whittet-Higgins Company), 528-7378786 PC55 (Naval Sea Systems Command).
5 possible matches (shared part number, not a government interchangeability claim): 5310-01-468-7152, 5310-01-468-7188, 5310-01-468-7595. Verify interchangeability with system specifications before substitution.
Key specifications for PN-10: Thread Pitch Diameters: +1.9309 TO 1.9354 INCHES IN; Drive Point Width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.967 INCHES IN. 12 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.