PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E643-7002-131L1Nut,self-Locking,hexagon

Naval Inventory Control Point Mechanicsburg · NSN 5310-01-202-1773 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-202-1773 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-202-1773. Primary manufacturer part number: E643-7002-131L1.
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
  • Criticality Code Justification: ZZZX
  • 32 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-202-1773, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 32 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-202-1773
Primary Part NumberE643-7002-131L1
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
Criticality Code JustificationZZZX
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5310-01-441-9209 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-540-9547 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-628-13417550477-G5473100-052 INTERCHANGEABLE
Nut,self-Locking,hexagon
Naval Sea Systems Command
5310-01-667-4448 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-701-1932 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
E643-7002-131L1 Naval Inventory Control Point Mechanicsburg (USA)
167-7409320-64L1 Naval Inventory Control Point Mechanicsburg (USA)
H525-7708-6 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
H643-7002-139 Unimasco Inc (USA)
501-7066669-6 Naval Sea Systems Command (USA)
596-7410425-25L1 Naval Inventory Control Point Mechanicsburg (USA)
H643-7002-139L1 Naval Inventory Control Point Mechanicsburg (USA)
342-8357102-131L1 Naval Inventory Control Point Mechanicsburg (USA)
512-6404649 FIND104 Naval Sea Systems Command (USA)
H525-7708-6L1 Naval Inventory Control Point Mechanicsburg (USA)
B541-1100-63 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
512-6404649 FIND 104L1 Naval Inventory Control Point Mechanicsburg (USA)
E643-7002-131 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
512-6404649 FIND 102L1 Naval Inventory Control Point Mechanicsburg (USA)
M25027/1-6C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
342-8357102-131 Naval Sea Systems Command (USA)
563-7504410 ITEM 27 Naval Sea Systems Command (USA)
563-7504410 ITEM 28 Naval Sea Systems Command (USA)
563-7504410 ITEM 28L1 Naval Inventory Control Point Mechanicsburg (USA)
M25027/1-6CL1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-01-441-9209INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-540-9547INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-628-1341INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
7550477-G5473100-052
5310-01-667-4448INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-701-1932INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-202-1773?

NSN 5310-01-202-1773 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 5310-01-202-1773?

NSN 5310-01-202-1773 has 32 cross-referenced part numbers: E643-7002-131L1 (Naval Inventory Control Point Mechanicsburg), 167-7409320-64L1 (Naval Inventory Control Point Mechanicsburg), H525-7708-6 (Electric Boat Corporation Div General Dynamics Electric Boat), H643-7002-139 (Unimasco Inc), 501-7066669-6 (Naval Sea Systems Command) and 27 more.

What NSN replaces 5310-01-202-1773?

There are 5 known substitutes for 5310-01-202-1773: 5310-01-441-9209, 5310-01-540-9547, 5310-01-628-1341 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E643-7002-131L1?

Key specifications for E643-7002-131L1: Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Criticality Code Justification: ZZZX. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-202-1773 still in active supply?

NSN 5310-01-202-1773 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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