PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2643-852-01-ITEM-57L1Nut,self-Locking,hexagon

Naval Inventory Control Point Mechanicsburg · NSN 5310-00-042-4968 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-042-4968 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-042-4968. Primary manufacturer part number: 2643-852-01-ITEM-57L1.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Material: NICKEL ALLOY AND PLASTIC NUT
  • Nut Height: 1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 8
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: CHAMFERED
  • Criticality Code Justification: ZZZX
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy and Plastic Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-042-4968, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 40 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-042-4968
Primary Part Number2643-852-01-ITEM-57L1
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusCANCELLED
Departure From Cited DesignatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
MaterialNICKEL ALLOY AND PLASTIC NUT
Nut Height1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN
Thread Quantity Per Inch8
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeCHAMFERED
Criticality Code JustificationZZZX
Nominal Thread Size1.000 INCHES IN
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Thread Class3B
Width Across Flats1.428 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE WITH NONMETALLIC INSERT
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-235-0111MS17828-16C INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-122-5815 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-202-8819 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-241-1913 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-476-8619MS17828V16C INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-642-5667 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
2643-852-01-ITEM-57L1 Naval Inventory Control Point Mechanicsburg (USA)
566-6405738-SDGC-A31-1L1 Naval Inventory Control Point Mechanicsburg (USA)
845-7286652-ITEM-57L1 Naval Inventory Control Point Mechanicsburg (USA)
2643-852-01-ITEM-57 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
C623-0502-SDGC-A31-1 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
845-7286652-ITEM-50L1 Naval Inventory Control Point Mechanicsburg (USA)
2643-852-01-ITEM-50 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
1.000-8UNC-3B NICU Naval Sea Systems Command (USA)
211026363L1 Naval Inventory Control Point Mechanicsburg (USA)
MS17828-16CL1 Naval Inventory Control Point Mechanicsburg (USA)
845-7286652-ITEM-57 Naval Sea Systems Command (USA)
MS17828-16C Electric Boat Corporation Div General Dynamics Electric Boat (USA)
711-4678207-0012L1 Naval Inventory Control Point Mechanicsburg (USA)
566-6985434-25L1 Naval Inventory Control Point Mechanicsburg (USA)
60-08-0435 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
V1E10396 ITEM 21L1 Naval Inventory Control Point Mechanicsburg (USA)
2642-852-01 ITEM 71 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2070-102ITEM7 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
MS17828-16C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
C623-0502-SDGC-A31-1L1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-00-235-0111INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS17828-16C
5310-01-122-5815INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-202-8819INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-241-1913INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-476-8619INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS17828V16C
5310-01-642-5667INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-042-4968?

NSN 5310-00-042-4968 is a Nut,self-Locking,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-042-4968?

NSN 5310-00-042-4968 has 40 cross-referenced part numbers: 2643-852-01-ITEM-57L1 (Naval Inventory Control Point Mechanicsburg), 566-6405738-SDGC-A31-1L1 (Naval Inventory Control Point Mechanicsburg), 845-7286652-ITEM-57L1 (Naval Inventory Control Point Mechanicsburg), 2643-852-01-ITEM-57 (Electric Boat Corporation Div General Dynamics Electric Boat), C623-0502-SDGC-A31-1 (Electric Boat Corporation Div General Dynamics Electric Boat) and 35 more.

What NSN replaces 5310-00-042-4968?

There are 6 known substitutes for 5310-00-042-4968: 5310-00-235-0111, 5310-01-122-5815, 5310-01-202-8819 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2643-852-01-ITEM-57L1?

Key specifications for 2643-852-01-ITEM-57L1: Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Material: NICKEL ALLOY AND PLASTIC NUT; Nut Height: 1.016 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN; Thread Quantity Per Inch: 8. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-042-4968 still in active supply?

NSN 5310-00-042-4968 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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