The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-268-6042, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-268-6042 |
| Primary Part Number | AN121503 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Aeronautical Standards Group Dept of Navy and Air Force |
| Status | ACTIVE |
| Nut Height | 0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Quantity Per Inch | 24 |
| Nominal Thread Size | 0.312 INCHES IN |
| Hardness Rating | 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM |
| Width Across Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Bearing Surface Type | WASHER FACED |
| Nut Style | HEXAGON |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 8740 OVERALL |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Bearing Surface Finish | 63.0 MICROINCHES |
| Countersink Angle | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM NUT |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3B |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AN121503 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 879-026C | Harsco Corp Bmy-Combat Systems Div (USA) |
| 512 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 2D4 | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| 2439 | Renk America Llc Div Renk America (USA) |
| 2439 | Satair A/s (DNK) |
| 879-026C | Asrc Federal Facilities Logistics, Llc (USA) |
NSN 5310-00-268-6042 is a Nut,plain,hexagon, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-268-6042 has 7 cross-referenced part numbers: AN121503 (Aeronautical Standards Group Dept of Navy and Air Force), 879-026C (Harsco Corp Bmy-Combat Systems Div), 512 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2D4 (Curtiss-Wright Controls, Inc. Div Actuation Division), 2439 (Renk America Llc Div Renk America) and 2 more.
There are 12 known substitutes for 5310-00-268-6042: 5815-00-050-8907, 2530-00-143-4346, 5998-00-160-0897 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AN121503: Nut Height: 0.256 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN; Thread Series: UNF; Thread Quantity Per Inch: 24; Nominal Thread Size: 0.312 INCHES IN. 18 total characteristics are documented in the Federal Logistics Information System.