PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1.500-6UNRC-2A X 6.250L1Screw,cap,socket Head

Naval Inventory Control Point Mechanicsburg · NSN 5305-01-423-8881 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-423-8881 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-423-8881. Primary manufacturer part number: 1.500-6UNRC-2A X 6.250L1.
Features
  • Screw,cap,socket Head — FSC 5305
  • Criticality Code Justification: ZZZX
  • Thread Series Designator: UNRC
  • Internal Drive Style: HEXAGON
  • Material Document and Classification: QQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Departure From Cited Designator: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Nominal Thread Diameter: 1.500 INCHES IN
  • Material: NICKEL ALLOY 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 5305-01-423-8881, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 4 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
NSN5305-01-423-8881
Primary Part Number1.500-6UNRC-2A X 6.250L1
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZX
Thread Series DesignatorUNRC
Internal Drive StyleHEXAGON
Material Document and ClassificationQQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Departure From Cited DesignatorMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Nominal Thread Diameter1.500 INCHES IN
MaterialNICKEL ALLOY OVERALL
Fastener Length6.250 INCHES MAXIMUM IN
Thread Class2A A
Thread Quantity Per Inch6
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5307-01-227-2875 INTERCHANGEABLE
Stud,continuous Thread
5307-01-306-7552 INTERCHANGEABLE
Stud,continuous Thread
5305-01-339-9560 INTERCHANGEABLE
Screw,cap,socket Head
5305-01-346-1579 INTERCHANGEABLE
Screw,cap,socket Head
5307-01-350-3236 INTERCHANGEABLE
Stud,continuous Thread
5305-01-406-8548 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
5305-01-432-7522 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
1.500-6UNRC-2A X 6.250L1 Naval Inventory Control Point Mechanicsburg (USA)
1.500-6UNRC-2A X 6.250 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
754-6405242 FIND 17L1 Naval Inventory Control Point Mechanicsburg (USA)
QQ-N-286 GR 500L1 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
6405242 FN 17 Naval Sea Systems Command (USA)
QQ-N-286 GR 500 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
6405242 FN 17L1 Naval Inventory Control Point Mechanicsburg (USA)
754-6405242 FIND 17 Naval Sea Systems Command (USA)
MIL-DTL-1222 TYPE IIL1 Naval Inventory Control Point Mechanicsburg (USA)
211069085L1 Naval Inventory Control Point Mechanicsburg (USA)
211069085 Naval Sea Systems Command (USA)
Related Parts
5307-01-227-2875INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5307-01-306-7552INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5305-01-339-9560INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-346-1579INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5307-01-350-3236INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5305-01-406-8548INTERCHANGEABLE
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
5305-01-432-7522INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-544-9792INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-545-0118INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD

Frequently Asked Questions

What is NSN 5305-01-423-8881?

NSN 5305-01-423-8881 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 5305-01-423-8881?

NSN 5305-01-423-8881 has 12 cross-referenced part numbers: 1.500-6UNRC-2A X 6.250L1 (Naval Inventory Control Point Mechanicsburg), 1.500-6UNRC-2A X 6.250 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 754-6405242 FIND 17L1 (Naval Inventory Control Point Mechanicsburg), QQ-N-286 GR 500L1 (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) and 7 more.

What NSN replaces 5305-01-423-8881?

There are 12 known substitutes for 5305-01-423-8881: 5307-01-227-2875, 5307-01-306-7552, 5305-01-339-9560 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1.500-6UNRC-2A X 6.250L1?

Key specifications for 1.500-6UNRC-2A X 6.250L1: Criticality Code Justification: ZZZX; Thread Series Designator: UNRC; Internal Drive Style: HEXAGON; Material Document and Classification: QQ-N-286 GR500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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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