The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-275-0803, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-275-0803 |
| Primary Part Number | 903272PC7 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg 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 |
| Material Document and Classification | QQ-S-633,B1112 TO 1120 FED SPEC ALL MATERIAL RESPONSES NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.234 INCHES NOMINAL IN |
| Surface Treatment | ZINC NUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | FIBER LOCKING INSERT |
| Material | STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL COMP 1115 OR STEEL COMP 1116 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1119 OR STEEL COMP 1120 NUT |
| 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 |
|---|---|
| 903272PC7 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 24M04 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-275-0803 is a Nut,self-Locking,hexagon, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-275-0803 has 1 manufacturer part number on file: 903272PC7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 903272PC7: Width Across Flats: 0.375 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Material Document and Classification: QQ-S-633,B1112 TO 1120 FED SPEC ALL MATERIAL RESPONSES NUT. 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.