PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

709-8540939 ITEM 06-5Screw,cap,hexagon Head

Naval Sea Systems Command · NSN 5305-01-657-0405 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-657-0405 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-657-0405. Primary manufacturer part number: 709-8540939 ITEM 06-5.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • 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 Sea Systems Command
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-657-0405, is classified within Federal Supply Class 5305 (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 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-657-0405
Primary Part Number709-8540939 ITEM 06-5
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
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 11
5305-01-339-9560 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-406-8548 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-423-8881 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-425-7874 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-426-3158 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-429-5654 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-544-9792 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-545-0118 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-01-545-0168 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-642-0502 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
709-8540939 ITEM 06-5 Naval Sea Systems Command (USA)
0.375-16UNC-2AX2.00INCONEL Naval Sea Systems Command (USA)
MIL-DTL-1222 TYPE IID4 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TYPE II Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0.375-16UNC-2AX2.00INCONELD4 Naval Inventory Control Point Mechanicsburg (USA)
709-8540939 ITEM 06-5D4 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5305-01-339-9560INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-406-8548INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-423-8881INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-425-7874INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-426-3158INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-429-5654INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-544-9792INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-545-0118INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-01-545-0168INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-642-0502INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-673-9057INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-01-657-0405?

NSN 5305-01-657-0405 is a Screw,cap,hexagon Head, manufactured by Naval Sea Systems Command, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-657-0405?

NSN 5305-01-657-0405 has 6 cross-referenced part numbers: 709-8540939 ITEM 06-5 (Naval Sea Systems Command), 0.375-16UNC-2AX2.00INCONEL (Naval Sea Systems Command), MIL-DTL-1222 TYPE IID4 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 TYPE II (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 0.375-16UNC-2AX2.00INCONELD4 (Naval Inventory Control Point Mechanicsburg) and 1 more.

What NSN replaces 5305-01-657-0405?

There are 11 known substitutes for 5305-01-657-0405: 5305-01-339-9560, 5305-01-406-8548, 5305-01-423-8881 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 709-8540939 ITEM 06-5?

Key specifications for 709-8540939 ITEM 06-5: Special Features: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGEN; 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. 3 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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