PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0.375-16UNC-3B NICUD4Nut,plain,hexagon

Naval Inventory Control Point Mechanicsburg · NSN 5310-01-627-8739 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-627-8739 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-627-8739. Primary manufacturer part number: 0.375-16UNC-3B NICUD4.
Features
  • Nut,plain,hexagon — FSC 5310
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
  • Criticality Code Justification: ZZZY
  • 6 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,plain,hexagon, cataloged under National Stock Number 5310-01-627-8739, 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 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-627-8739
Primary Part Number0.375-16UNC-3B NICUD4
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-01-312-8111 INTERCHANGEABLE
Nut,self-Locking,hexagon
5310-01-588-0413709-8345731-012-004 INTERCHANGEABLE
Nut,plain,hexagon
Naval Sea Systems Command
5310-01-651-9760111-8540933 ITEM 4-3 INTERCHANGEABLE
Nut,sleeve
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
0.375-16UNC-3B NICUD4 Naval Inventory Control Point Mechanicsburg (USA)
709-8345731-011-006D4 Naval Inventory Control Point Mechanicsburg (USA)
709-8345731-011-006 Naval Sea Systems Command (USA)
0.375-16UNC-3B NICU Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
709-8345731-012-006 Naval Sea Systems Command (USA)
709-8345731-012-006D4 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-01-312-8111INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5310-01-588-0413INTERCHANGEABLE
NUT,PLAIN,HEXAGON
709-8345731-012-004
5310-01-651-9760INTERCHANGEABLE
NUT,SLEEVE
111-8540933 ITEM 4-3

Frequently Asked Questions

What is NSN 5310-01-627-8739?

NSN 5310-01-627-8739 is a Nut,plain,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-627-8739?

NSN 5310-01-627-8739 has 6 cross-referenced part numbers: 0.375-16UNC-3B NICUD4 (Naval Inventory Control Point Mechanicsburg), 709-8345731-011-006D4 (Naval Inventory Control Point Mechanicsburg), 709-8345731-011-006 (Naval Sea Systems Command), 0.375-16UNC-3B NICU (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 709-8345731-012-006 (Naval Sea Systems Command) and 1 more.

What NSN replaces 5310-01-627-8739?

There are 3 known substitutes for 5310-01-627-8739: 5310-01-312-8111, 5310-01-588-0413, 5310-01-651-9760. Verify interchangeability with system specifications before substitution.

What are the specifications of 0.375-16UNC-3B NICUD4?

Key specifications for 0.375-16UNC-3B NICUD4: Special Features: .375-16 UNC-3B; End Item Identification: DRY DECK SHELTER FS-156 CRADLE ASSEMBLY AND DETAILS; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES; Criticality Code Justification: ZZZY. 5 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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