PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-4385050 PIECE 67Screw,cap,socket Head

Naval Ship Systems Command · NSN 5305-01-337-0354 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-337-0354 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-337-0354. Primary manufacturer part number: 803-4385050 PIECE 67.
Features
  • Screw,cap,socket Head — FSC 5305
  • Material: PLASTIC NYLON LOCKING FEATURE
  • Thread Class: 2A A
  • Thread Direction: RIGHT-HAND
  • Head Diameter: 1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Diameter: 0.750 INCHES IN
  • Material Document and Classification: QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE FASTENER
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Nylon Locking Feature construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-337-0354, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5305-01-337-0354
Primary Part Number803-4385050 PIECE 67
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
MaterialPLASTIC NYLON LOCKING FEATURE
Thread Class2A A
Thread DirectionRIGHT-HAND
Head Diameter1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.750 INCHES IN
Material Document and ClassificationQQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE FASTENER
Internal Drive StyleHEXAGON
MaterialNICKEL ALLOY K-500 FASTENER
Locking FeaturePATCH OR PELLET OR STRIP THREADS
Width Across Flats0.625 INCHES NOMINAL IN
Head Height0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Fastener Length4.000 INCHES NOMINAL IN
Thread Quantity Per Inch10
Head StyleFLAT CHAMFER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-01-299-6598 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
803-4385050 PIECE 67 PRIMARY Naval Ship Systems Command (USA)
Related Parts
5305-01-299-6598INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD

Frequently Asked Questions

What is NSN 5305-01-337-0354?

NSN 5305-01-337-0354 is a Screw,cap,socket Head, manufactured by Naval Ship Systems Command, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-337-0354?

NSN 5305-01-337-0354 has 1 cross-referenced part number: 803-4385050 PIECE 67 (Naval Ship Systems Command).

What NSN replaces 5305-01-337-0354?

There is 1 known substitute for 5305-01-337-0354: 5305-01-299-6598. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-4385050 PIECE 67?

Key specifications for 803-4385050 PIECE 67: Material: PLASTIC NYLON LOCKING FEATURE; Thread Class: 2A A; Thread Direction: RIGHT-HAND; Head Diameter: 1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN. 15 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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