The Nut,self-Locking,spline, cataloged under National Stock Number 5310-01-043-7752, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-043-7752 |
| Primary Part Number | 200AS104-8A063CR |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Width Across Flats | 0.375 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Nut Counterbore Depth | 0.053 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Counterbore Diameter | 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM NUT IN |
| Pilot Diameter | 0.264 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Pilot Length | 0.063 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.286 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| 200AS104-8A063CR PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 50FP1-832 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 81121 | 5/9 Secondary reference Federal Screw Products, Inc. |
NSN 5310-01-043-7752 is a Nut,self-Locking,spline, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-043-7752 has 2 manufacturer part numbers on file: 200AS104-8A063CR (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 50FP1-832 (Sps Technologies, Llc Dba PB Fasteners).
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-327-0485, 5315-01-420-9841, 5340-01-570-1584. Verify interchangeability with system specifications before substitution.
Key specifications for 200AS104-8A063CR: Width Across Flats: 0.375 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Nut Counterbore Depth: 0.053 INCHES NOMINAL NUT IN. 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.