The Nut,self-Locking,spline, cataloged under National Stock Number 5310-00-549-6821, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-549-6821 |
| Primary Part Number | 1752101-4 |
| Item Name | Nut,self-Locking,spline |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Nut Diameter | 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Quantity Per Inch | 32 |
| Nominal Thread Size | 0.138 INCHES IN |
| Material | STEEL OVERALL |
| Thread Class | 3B |
| Nut Height | 0.167 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Pilot Diameter | 0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN |
| Nut Style | SPLINE |
| Pilot Length | 0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1752101-4 | The Boeing Company Div Defense (USA) |
| M45938-6-6 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 1752101-4 | Honeywell International Inc. Dba Honeywell International (USA) |
| MILN45938-6 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5310-00-549-6821 is a Nut,self-Locking,spline, manufactured by The Boeing Company Div Defense, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-549-6821 has 4 cross-referenced part numbers: 1752101-4 (The Boeing Company Div Defense), M45938-6-6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1752101-4 (Honeywell International Inc. Dba Honeywell International), MILN45938-6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 9 known substitutes for 5310-00-549-6821: 5310-00-538-7802, 5310-00-984-5543, 5310-01-015-8792 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1752101-4: Nut Diameter: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC). 14 total characteristics are documented in the Federal Logistics Information System.