PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-F-18240EScrew,cap,socket Head

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5305-00-075-3633 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-075-3633 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-075-3633. Primary manufacturer part number: MIL-F-18240E.
Features
  • Screw,cap,socket Head — FSC 5305
  • Head Diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
  • Head Style: FILLISTER
  • Head Height: 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.112 INCHES IN
  • Thread Quantity Per Inch: 40
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Internal Drive Style: SLOT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-075-3633, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-075-3633
Primary Part NumberMIL-F-18240E
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Head Diameter0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
Head StyleFILLISTER
Head Height0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
Nominal Thread Diameter0.112 INCHES IN
Thread Quantity Per Inch40
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Internal Drive StyleSLOT
Thread Length0.625 INCHES MINIMUM IN
MaterialSTEEL CORROSION RESISTING OVERALL
Locking FeaturePATCH OR STRIP THREADS
Fastener Length0.625 INCHES NOMINAL IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread DirectionRIGHT-HAND
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5305-00-063-5288NK515-8R16 INTERCHANGEABLE
Screw,cap,socket Head
Nylok Llc
5305-00-137-3071MS21262-60 INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-184-2667 INTERCHANGEABLE
Screw,cap,socket Head
5305-00-240-6605NAS1189-08P4L INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-248-592328705N94C12P18A INTERCHANGEABLE
Setscrew
Sps Technologies, Llc Dba PB Fasteners
5305-00-465-5544NASM18063-71 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-584-80121611209PC47 INTERCHANGEABLE
Screw,cap,socket Head
Naval Sea Systems Command
5305-00-793-5594NAS1190E3P7L INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-838-7325 INTERCHANGEABLE
Screw,cap,socket Head
5305-00-948-99135480 INTERCHANGEABLE
Screw,cap,socket Head
Air-Lock, Incorporated
Cross-Reference Index
Part NumberManufacturer
MIL-F-18240E Federal Specifications Promulgated by General Services Administration Washington DC (USA)
LL35275-218 Long-Lok, Llc (USA)
Related Parts
5305-00-063-5288INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NK515-8R16
5305-00-137-3071INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
MS21262-60
5305-00-184-2667INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-00-240-6605INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NAS1189-08P4L
5305-00-248-5923INTERCHANGEABLE
SETSCREW
28705N94C12P18A
5305-00-465-5544INTERCHANGEABLE
SETSCREW
NASM18063-71
5305-00-584-8012INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
1611209PC47
5305-00-793-5594INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NAS1190E3P7L
5305-00-838-7325INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-00-948-9913INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5480
5306-01-296-2850INTERCHANGEABLE
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5305-00-075-3633?

NSN 5305-00-075-3633 is a Screw,cap,socket Head, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-075-3633?

NSN 5305-00-075-3633 has 2 cross-referenced part numbers: MIL-F-18240E (Federal Specifications Promulgated by General Services Administration Washington DC), LL35275-218 (Long-Lok, Llc).

What NSN replaces 5305-00-075-3633?

There are 11 known substitutes for 5305-00-075-3633: 5305-00-063-5288, 5305-00-137-3071, 5305-00-184-2667 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-F-18240E?

Key specifications for MIL-F-18240E: Head Diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN; Head Style: FILLISTER; Head Height: 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-075-3633 still in active supply?

NSN 5305-00-075-3633 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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