The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-021-8439, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-021-8439 |
| Primary Part Number | 13X44 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Nut Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Quantity Per Inch | 14 |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Nominal Thread Size | 0.438 INCHES IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Nondefinitive Spec/std Data | A TYPE |
| Material | STEEL OVERALL |
| Material Document and Classification | QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Thread Class | 2B |
| Nut Height | 0.234 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| P5076 | Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co (USA) |
| 13X44 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| MILB857TYPEA | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 2048B | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| P5076 | Koehring Co Lorain Div (USA) |
| 2048B | Hercules Engine Co Inc (USA) |
NSN 5310-00-021-8439 is a Nut,plain,hexagon, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-00-021-8439 has 6 cross-referenced part numbers: P5076 (Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co), 13X44 (Meritor Heavy Vehicle Systems, Llc), MILB857TYPEA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2048B (Brinkley Technology Group Llc Dba Hercules Manufacturing), P5076 (Koehring Co Lorain Div) and 1 more.
There is 1 known substitute for 5310-00-021-8439: 3441-00-146-1423. Verify interchangeability with system specifications before substitution.
Key specifications for 13X44: Nut Style: HEXAGON; Thread Direction: RIGHT-HAND; Thread Quantity Per Inch: 14; Bearing Surface Type: CHAMFERED OR WASHER FACED. 12 total characteristics are documented in the Federal Logistics Information System.