PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5310005185566Nut,plain,single Ball Seat,hexag

E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales · NSN 5310-00-518-5566 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-518-5566 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-518-5566. Primary manufacturer part number: 5310005185566.
Features
  • Nut,plain,single Ball Seat,hexag — FSC 5310
  • Thread Series: UNF
  • Nominal Thread Size: 0.750 INCHES IN
  • Features Provided: CASEHARDENED
  • Thread Quantity Per Inch: 16
  • Nut Height: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
  • Width Across Flats: 1.475 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4135 or Steel Comp 4140 or Steel Comp 5135 or Steel Comp 5140 or Steel Comp 8637 or Steel Comp 8640 or Steel Comp 8740 Overall construction
General Description

The Nut,plain,single Ball Seat,hexag, cataloged under National Stock Number 5310-00-518-5566, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-518-5566
Primary Part Number5310005185566
Item NameNut,plain,single Ball Seat,hexag
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerE.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
StatusACTIVE
Thread SeriesUNF
Nominal Thread Size0.750 INCHES IN
Features ProvidedCASEHARDENED
Thread Quantity Per Inch16
Nut Height0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN
Width Across Flats1.475 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Thread Class2B
Thread DirectionLEFT-HAND
Nut StyleSINGLE BALL SEAT, HEXAGON
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Ball Seat Radius0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
MaterialSTEEL COMP 4135 OR STEEL COMP 4140 OR STEEL COMP 5135 OR STEEL COMP 5140 OR STEEL COMP 8637 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-053-7804 INTERCHANGEABLE
Nut,self-Locking,single Ball Sea
2915-00-453-3972 INTERCHANGEABLE
Tube Assy
5310-01-045-3709 INTERCHANGEABLE
Nut,plain,single Ball Seat,hexag
3010-01-078-026584712 INTERCHANGEABLE
Disk,clutch,nonvehicular
Ge Aviation Systems Llc Dba Ge Aviation
5310-01-270-5463 INTERCHANGEABLE
Nut,plain,single Ball Seat,hexag
5310-01-274-2738299398C1 INTERCHANGEABLE
Nut,special
Navistar Intl Corp Truck Br Ohio Plant
5970-01-432-0966 INTERCHANGEABLE
Insulator,spacer
5915-01-711-155784-712 INTERCHANGEABLE
Filter,radio Frequency Interfere
Edmund Optics, Inc
Cross-Reference Index
Part NumberManufacturer
5310005185566 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
A-A-52427 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A52427-L-0.750 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS51983-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
84712 Zf Industrieantriebe Witten Gmbh (DEU)
84712H Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5310-00-053-7804INTERCHANGEABLE
NUT,SELF-LOCKING,SINGLE BALL SEA
2915-00-453-3972INTERCHANGEABLE
TUBE ASSY
5310-01-045-3709INTERCHANGEABLE
NUT,PLAIN,SINGLE BALL SEAT,HEXAG
3010-01-078-0265INTERCHANGEABLE
DISK,CLUTCH,NONVEHICULAR
84712
5310-01-270-5463INTERCHANGEABLE
NUT,PLAIN,SINGLE BALL SEAT,HEXAG
5310-01-274-2738INTERCHANGEABLE
NUT,SPECIAL
299398C1
5970-01-432-0966INTERCHANGEABLE
INSULATOR,SPACER
5915-01-711-1557INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
84-712

Frequently Asked Questions

What is NSN 5310-00-518-5566?

NSN 5310-00-518-5566 is a Nut,plain,single Ball Seat,hexag, manufactured by E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-518-5566?

NSN 5310-00-518-5566 has 6 cross-referenced part numbers: 5310005185566 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), A-A-52427 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A52427-L-0.750 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MS51983-1 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 84712 (Zf Industrieantriebe Witten Gmbh) and 1 more.

What NSN replaces 5310-00-518-5566?

There are 8 known substitutes for 5310-00-518-5566: 5310-00-053-7804, 2915-00-453-3972, 5310-01-045-3709 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310005185566?

Key specifications for 5310005185566: Thread Series: UNF; Nominal Thread Size: 0.750 INCHES IN; Features Provided: CASEHARDENED; Thread Quantity Per Inch: 16. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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