The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-249-0904, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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 | 5310-01-249-0904 |
| Primary Part Number | MS51943-5 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Width Across Flats | 0.5510 INCHES MINIMUM AND 0.5645 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Nut Height | 0.320 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 16 |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Nominal Thread Size | 0.375 INCHES IN |
| Thread Class | 3B |
| Thread Direction | RIGHT-HAND |
| Nut Style | HEXAGON |
| Surface Treatment | PHOSPHATE ZINC NUT |
| Surface Treatment Document and Classification | MIL-P-16232,TY Z,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE NUT |
| Material | STEEL NUT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS51943-5 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| M45913/3-6CG8P | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-45913/3 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5310-01-249-0904 is a Nut,self-Locking,hexagon, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-249-0904 has 3 cross-referenced part numbers: MS51943-5 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), M45913/3-6CG8P (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-45913/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 9 known substitutes for 5310-01-249-0904: 5310-00-340-4953, 5310-00-814-0672, 5310-01-137-7062 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS51943-5: Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT; Width Across Flats: 0.5510 INCHES MINIMUM AND 0.5645 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nut Height: 0.320 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.