PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-4385050 PIECE 67L1Screw,cap,socket Head

Naval Inventory Control Point Mechanicsburg · NSN 5305-01-299-6598 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-299-6598 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-299-6598. Primary manufacturer part number: 803-4385050 PIECE 67L1.
Features
  • Screw,cap,socket Head — FSC 5305
  • Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: NICKEL ALLOY OVERALL
  • Fastener Length: 4.000 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Nominal Thread Diameter: 0.750 INCHES IN
  • Material Document and Classification: QQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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 5305-01-299-6598, is classified within Federal Supply Class 5305 (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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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
NSN5305-01-299-6598
Primary Part Number803-4385050 PIECE 67L1
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Departure From Cited DesignatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialNICKEL ALLOY OVERALL
Fastener Length4.000 INCHES MAXIMUM IN
Thread Class2A A
Nominal Thread Diameter0.750 INCHES IN
Material Document and ClassificationQQ-N-286 GR 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Quantity Per Inch10
Criticality Code JustificationZZZX
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-01-303-4053 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-337-0354803-4385050 PIECE 67 INTERCHANGEABLE
Screw,cap,socket Head
Naval Ship Systems Command
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
5305-01-398-9865 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-398-9866 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
803-4385050 PIECE 67L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TY IIL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TY II Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0.750-10UNC-2A X 4.000 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 TYII GR500SLFLKG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0.750-10UNC-2A X 4.000L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 TYII GR500SLFLKGL1 Naval Inventory Control Point Mechanicsburg (USA)
803-4385050 PIECE 67 Naval Ship Systems Command (USA)
Related Parts
5305-01-303-4053INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-337-0354INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
803-4385050 PIECE 67
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
5305-01-398-9865INTERCHANGEABLE
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 5305-01-299-6598?

NSN 5305-01-299-6598 is a Screw,cap,socket Head, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-299-6598?

NSN 5305-01-299-6598 has 8 cross-referenced part numbers: 803-4385050 PIECE 67L1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 TY IIL1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222 TY II (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 0.750-10UNC-2A X 4.000 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222 TYII GR500SLFLKG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5305-01-299-6598?

There are 12 known substitutes for 5305-01-299-6598: 5305-01-303-4053, 5305-01-337-0354, 5305-01-346-1579 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-4385050 PIECE 67L1?

Key specifications for 803-4385050 PIECE 67L1: Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: NICKEL ALLOY OVERALL; Fastener Length: 4.000 INCHES MAXIMUM IN. 10 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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