PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

342-7067321-139Nut,self-Locking,hexagon

Naval Sea Systems Command · NSN 5310-01-667-4448 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-667-4448 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-667-4448. Primary manufacturer part number: 342-7067321-139.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • 8 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-667-4448, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-667-4448
Primary Part Number342-7067321-139
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-01-202-1773 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
342-7067321-139 Naval Sea Systems Command (USA)
H643-7002-134L1 Naval Inventory Control Point Mechanicsburg (USA)
H643-7002-139 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
342-7067321-134L1 Naval Inventory Control Point Mechanicsburg (USA)
H643-7002-134 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
342-7067321-139L1 Naval Inventory Control Point Mechanicsburg (USA)
H643-7002-139L1 Naval Inventory Control Point Mechanicsburg (USA)
342-7067321-134 Naval Sea Systems Command (USA)
Related Parts
5310-01-202-1773INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-667-4448?

NSN 5310-01-667-4448 is a Nut,self-Locking,hexagon, manufactured by Naval Sea Systems Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-667-4448?

NSN 5310-01-667-4448 has 8 cross-referenced part numbers: 342-7067321-139 (Naval Sea Systems Command), H643-7002-134L1 (Naval Inventory Control Point Mechanicsburg), H643-7002-139 (Electric Boat Corporation Div General Dynamics Electric Boat), 342-7067321-134L1 (Naval Inventory Control Point Mechanicsburg), H643-7002-134 (Electric Boat Corporation Div General Dynamics Electric Boat) and 3 more.

What NSN replaces 5310-01-667-4448?

There is 1 known substitute for 5310-01-667-4448: 5310-01-202-1773. Verify interchangeability with system specifications before substitution.

What are the specifications of 342-7067321-139?

Key specifications for 342-7067321-139: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 2 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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