The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-275-5121, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Standard-Thomson Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-275-5121 |
| Primary Part Number | 51903 |
| Item Name | Nut,plain,slotted,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Standard-Thomson Corporation |
| Status | CANCELLED |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Quantity Per Inch | 32 |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Size | 0.164 INCHES IN |
| Bearing Surface Type | WASHER FACED |
| Width Across Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Nut Height | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nut Style | SLOTTED, HEXAGON |
| Thread Class | 3B |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL OR STEEL COMP 1315 OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 51903 PRIMARY | Standard-Thomson Corporation (USA) |
NSN 5310-00-275-5121 is a Nut,plain,slotted,hexagon, manufactured by Standard-Thomson Corporation, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-275-5121 has 1 cross-referenced part number: 51903 (Standard-Thomson Corporation).
There are 2 known substitutes for 5310-00-275-5121: 2940-00-460-3222, 5998-00-993-0193. Verify interchangeability with system specifications before substitution.
Key specifications for 51903: Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL; Thread Quantity Per Inch: 32; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Size: 0.164 INCHES IN. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-275-5121 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.