PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

595-6401267 ITEM 114Screw,cap,socket Head

Naval Sea Systems Command · NSN 5305-01-398-9865 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-398-9865 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-398-9865. Primary manufacturer part number: 595-6401267 ITEM 114.
Features
  • Screw,cap,socket Head — FSC 5305
  • Material: NICKEL ALLOY OVERALL
  • Thread Series Designator: UNRC
  • Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Material Document and Classification: QQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Quantity Per Inch: 18
  • Fastener Length: 0.750 INCHES MAXIMUM IN
  • Thread Class: 3A A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-398-9865, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-398-9865
Primary Part Number595-6401267 ITEM 114
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialNICKEL ALLOY OVERALL
Thread Series DesignatorUNRC
Departure From Cited DesignatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Material Document and ClassificationQQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Quantity Per Inch18
Fastener Length0.750 INCHES MAXIMUM IN
Thread Class3A A
Criticality Code JustificationZZZX
Nominal Thread Diameter0.312 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-01-299-6598 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-303-4053 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-334-0522 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-346-1579 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-348-1724 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-354-4678 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-393-7488 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-393-7498 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-393-7708 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-398-9866 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
595-6401267 ITEM 114 Naval Sea Systems Command (USA)
SIZE 0.312-18UNRC-3A X 0.750L1 Naval Inventory Control Point Mechanicsburg (USA)
SIZE 0.312-18UNRC-3A X 0.750 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222TYII GR500 SLF-LKG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 TYII L1 Naval Inventory Control Point Mechanicsburg (USA)
593-6405216 FIND 87L1 Naval Inventory Control Point Mechanicsburg (USA)
595-6401267 ITEM 114L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TYPE II GR 500 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 TYII Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 TYPE II GR 500L1 Naval Inventory Control Point Mechanicsburg (USA)
211067318 Naval Sea Systems Command (USA)
6405216 FIND 87 Naval Sea Systems Command (USA)
211067318L1 Naval Inventory Control Point Mechanicsburg (USA)
593-6405216 FIND 87 Naval Sea Systems Command (USA)
6405216 FIND 87L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222TYII GR500 SLF-LKGL1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5305-01-299-6598INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-303-4053INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-334-0522INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-346-1579INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-348-1724INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-354-4678INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-393-7488INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-393-7498INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-393-7708INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-398-9866INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-400-3360INTERCHANGEABLE
SCREW,MACHINE
5305-01-406-8548INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD

Frequently Asked Questions

What is NSN 5305-01-398-9865?

NSN 5305-01-398-9865 is a Screw,cap,socket Head, manufactured by Naval Sea Systems Command, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-398-9865?

NSN 5305-01-398-9865 has 16 cross-referenced part numbers: 595-6401267 ITEM 114 (Naval Sea Systems Command), SIZE 0.312-18UNRC-3A X 0.750L1 (Naval Inventory Control Point Mechanicsburg), SIZE 0.312-18UNRC-3A X 0.750 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222TYII GR500 SLF-LKG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222 TYII L1 (Naval Inventory Control Point Mechanicsburg) and 11 more.

What NSN replaces 5305-01-398-9865?

There are 12 known substitutes for 5305-01-398-9865: 5305-01-299-6598, 5305-01-303-4053, 5305-01-334-0522 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 595-6401267 ITEM 114?

Key specifications for 595-6401267 ITEM 114: Special Features: SCREW, CAP, SOCKET HEAD, SELF LOCKING (REQUESTED NAME); Material: NICKEL ALLOY OVERALL; Thread Series Designator: UNRC; Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS. 11 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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