The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-515-7554, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Esna, Llc. Government technical data includes 16 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-515-7554 |
| Primary Part Number | 12NH-20 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Esna, Llc |
| Status | CANCELLED |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Width Across Flats | 1.490 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN |
| Nominal Thread Size | 1.250 INCHES IN |
| Material | STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 3140 OR STEEL COMP 8740 OVERALL EXCEPT INSERT |
| Thread Quantity Per Inch | 12 |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Washer Outside Diameter | 2.115 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| Thread Class | 3B |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL EXCEPT INSERT |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Washer Thickness | 0.500 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Nut Style | DOUBLE HEXAGON |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL EXCEPT INSERT |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5310-00-515-7554 is a Nut,self-Locking,extended Washer, manufactured by Esna, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-515-7554 has 4 cross-referenced part numbers: 12NH-20 (Esna, Llc), 102B5559 (General Electric Company), 102B5559 (General Dynamics Defense Systems Inc. Dba General Dynamics Advanced Information Systems), EB-202 (Esna, Llc).
There is 1 known substitute for 5310-00-515-7554: 5905-00-935-8539. Verify interchangeability with system specifications before substitution.
Key specifications for 12NH-20: Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Width Across Flats: 1.490 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN; Nominal Thread Size: 1.250 INCHES IN; Material: STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 3140 OR STEEL COMP 8740 OVERALL EXCEPT INSERT. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-515-7554 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.