PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CA2104-6HSScrew,cap,socket Head

Howmet Global Fastening Systems Inc. Div Tridair Products · NSN 5305-01-054-6634 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-054-6634 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-054-6634. Primary manufacturer part number: CA2104-6HS.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Class: 3A A
  • Fastener Length: 1.047 INCHES MINIMUM AND 1.067 INCHES MAXIMUM IN
  • Countersink Angle: 100.0 DEGREES NOMINAL
  • Material: STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
  • Thread Quantity Per Inch: 28
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Minimum Tensile Strength: 160000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 or Steel Comp 8740 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-054-6634, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-054-6634
Primary Part NumberCA2104-6HS
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc. Div Tridair Products
StatusACTIVE
Thread Class3A A
Fastener Length1.047 INCHES MINIMUM AND 1.067 INCHES MAXIMUM IN
Countersink Angle100.0 DEGREES NOMINAL
MaterialSTEEL COMP 4140 OR STEEL COMP 8740 OVERALL
Thread Quantity Per Inch28
Nominal Thread Diameter0.250 INCHES IN
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Width Across Flats0.156 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface Finish32.0 MICROINCHES BEARING SURFACE OF HEAD
Material Document and ClassificationMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
Head StyleFLAT COUNTERSUNK
Surface Finish32.0 MICROINCHES GRIP
Surface TreatmentCADMIUM OVERALL
Internal Drive StyleHEXAGON
Thread Series DesignatorUNF
Thread Length0.487 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Head Diameter0.360 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5325-00-291-0217 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
5330-00-471-6476 INTERCHANGEABLE
Packing,preformed
5330-00-471-6482 INTERCHANGEABLE
Packing,preformed
5325-00-556-9213 INTERCHANGEABLE
Stud,turnlock Fastener
5365-00-767-4315 INTERCHANGEABLE
Spacer,plate
5310-00-956-3644 INTERCHANGEABLE
Nut,self-Locking,extended Washer
5365-01-014-4613 INTERCHANGEABLE
Spacer,plate
5365-01-014-4614 INTERCHANGEABLE
Spacer,plate
Cross-Reference Index
Part NumberManufacturer
CA2104-6HS PRIMARY Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
10114919 Nimikkeistokeskus Ncb Finland (FIN)
AIRWORTHY CERTIFICATED ITEM De&s Airworthiness Team (dat) (GBR)
CA2104-6HS Ministry of Defence, Uk Military Flying Training System Ipt (mfts Ipt) (GBR)
Related Parts
5325-00-291-0217INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
5330-00-471-6476INTERCHANGEABLE
PACKING,PREFORMED
5330-00-471-6482INTERCHANGEABLE
PACKING,PREFORMED
5325-00-556-9213INTERCHANGEABLE
STUD,TURNLOCK FASTENER
5365-00-767-4315INTERCHANGEABLE
SPACER,PLATE
5310-00-956-3644INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
5365-01-014-4613INTERCHANGEABLE
SPACER,PLATE
5365-01-014-4614INTERCHANGEABLE
SPACER,PLATE

Frequently Asked Questions

What is NSN 5305-01-054-6634?

NSN 5305-01-054-6634 is a Screw,cap,socket Head, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-054-6634?

NSN 5305-01-054-6634 has 4 cross-referenced part numbers: CA2104-6HS (Howmet Global Fastening Systems Inc. Div Tridair Products), 10114919 (Nimikkeistokeskus Ncb Finland), AIRWORTHY CERTIFICATED ITEM (De&s Airworthiness Team (dat)), CA2104-6HS (Ministry of Defence, Uk Military Flying Training System Ipt (mfts Ipt)).

What NSN replaces 5305-01-054-6634?

There are 8 known substitutes for 5305-01-054-6634: 5325-00-291-0217, 5330-00-471-6476, 5330-00-471-6482 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CA2104-6HS?

Key specifications for CA2104-6HS: Thread Class: 3A A; Fastener Length: 1.047 INCHES MINIMUM AND 1.067 INCHES MAXIMUM IN; Countersink Angle: 100.0 DEGREES NOMINAL; End Item Identification: NOT KNOWN. 21 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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