PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

211063486Screw,cap,socket Head

Naval Sea Systems Command · NSN 5305-01-414-4990 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-414-4990 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-414-4990. Primary manufacturer part number: 211063486.
Features
  • Screw,cap,socket Head — FSC 5305
  • Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-N-286 FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Locking Feature: STRIP OR PELLET OR PATCH THREADS
  • Thread Quantity Per Inch: 20
  • Internal Drive Style: HEXAGON
  • Thread Series Designator: UNRC
  • Fastener Length: 0.750 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy K-500 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-414-4990, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 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
NSN5305-01-414-4990
Primary Part Number211063486
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Head Height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Material Document and ClassificationQQ-N-286 FED SPEC ALL MATERIAL RESPONSES OVERALL
Locking FeatureSTRIP OR PELLET OR PATCH THREADS
Thread Quantity Per Inch20
Internal Drive StyleHEXAGON
Thread Series DesignatorUNRC
Fastener Length0.750 INCHES NOMINAL IN
Thread Class3A A
Head Diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
MaterialNICKEL ALLOY K-500 OVERALL
Head StyleFLAT FILLISTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-01-671-2716 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
M1222SN4C312NCLN Electric Boat Corporation Div General Dynamics Electric Boat (USA)
801-6408783-FIND-NO-37 Naval Sea Systems Command (USA)
211063486 PRIMARY Naval Sea Systems Command (USA)
211067204 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
M1222SN4C312NCLN Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
DF330643-FIND-NO-37 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
M1222SN4C312NCLN PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
751-6408594-31 Naval Sea Systems Command (USA)
546-6408671 FIND A7 Naval Sea Systems Command (USA)
6408783-37 Naval Sea Systems Command (USA)
Related Parts
5305-01-671-2716INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD

Frequently Asked Questions

What is NSN 5305-01-414-4990?

NSN 5305-01-414-4990 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 5305-01-414-4990?

NSN 5305-01-414-4990 has 10 cross-referenced part numbers: M1222SN4C312NCLN (Electric Boat Corporation Div General Dynamics Electric Boat), 801-6408783-FIND-NO-37 (Naval Sea Systems Command), 211063486 (Naval Sea Systems Command), 211067204 (Electric Boat Corporation Div General Dynamics Electric Boat), M1222SN4C312NCLN (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.

What NSN replaces 5305-01-414-4990?

There is 1 known substitute for 5305-01-414-4990: 5305-01-671-2716. Verify interchangeability with system specifications before substitution.

What are the specifications of 211063486?

Key specifications for 211063486: Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-286 FED SPEC ALL MATERIAL RESPONSES OVERALL; Locking Feature: STRIP OR PELLET OR PATCH THREADS; Thread Quantity Per Inch: 20. 12 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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