The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-574-0221, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-574-0221 |
| Primary Part Number | 09NE-126(MONEL) |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.052 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN |
| Bearing Surface Finish | 125.0 MICROINCHES |
| Thread Series | UNF |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | ASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Departure From Cited Designator | AS MODIFIED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.855 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN |
| Countersink Angle | 88.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 16 |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 NUT |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE LOCKING INSERT |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 09NE-126(MONEL) | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1411375000 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS17828-12F | 5/9 Secondary reference U.S. Government activity |
| MS17828-12F | 3/2 Design control — primary reference U.S. Government activity |
| 09NE126 | 5/9 Secondary reference Harvard Industries Inc |
| 09NE-126(MONEL) | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-574-0221 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-574-0221 has 1 manufacturer part number on file: 09NE-126(MONEL) (Esna, Llc).
Key specifications for 09NE-126(MONEL): Width Across Flats: 1.052 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN; Bearing Surface Finish: 125.0 MICROINCHES; Thread Series: UNF; Special Test Features: SPECIAL QUALITY CONTROL TESTING. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.