PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HT4025L3-10Screw,close Tolerance

Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana · NSN 5305-00-539-5326 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-539-5326 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-539-5326. Primary manufacturer part number: HT4025L3-10.
Features
  • Screw,close Tolerance — FSC 5305
  • Thread Quantity Per Inch: 32
  • Thread Length: 0.406 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Countersink Angle: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
  • Thread Direction: RIGHT-HAND
  • Head Style: FLAT COUNTERSUNK
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,close Tolerance, cataloged under National Stock Number 5305-00-539-5326, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 23 manufacturers, 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
NSN5305-00-539-5326
Primary Part NumberHT4025L3-10
Item NameScrew,close Tolerance
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana
StatusACTIVE
Thread Quantity Per Inch32
Thread Length0.406 INCHES NOMINAL IN
Nominal Thread Diameter0.190 INCHES IN
Countersink Angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
Thread DirectionRIGHT-HAND
Head StyleFLAT COUNTERSUNK
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
Thread Class3A A
Internal Drive StyleHIGH-TORQUE
Head Diameter0.376 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Fastener Length1.016 INCHES MINIMUM AND 1.046 INCHES MAXIMUM IN
Grip Length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Grip Diameter0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5315-00-034-3590139-461-5 INTERCHANGEABLE
Pin,shoulder,headless
Electrodynamics Inc Div L3harris Electrodynamics Inc
Cross-Reference Index
Part NumberManufacturer
HT4025L3-10 Huck International, Inc (USA)
10125364 Nimikkeistokeskus Ncb Finland (FIN)
HT4025L3-10 PRIMARY Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
HT4025L3-10 Sps Technologies, Llc Dba PB Fasteners (USA)
ST3M454-3L10 Houston Precision Fasteners I Lp (USA)
HT4025L3-10 Sps Technologies Ltd, Tj Brooks Division (GBR)
ST3M454-3L10 Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA)
HT4025L3-10 Fairchild Fasteners Europe - Vsd Gmbh (DEU)
HT4025L3-10 Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA)
ST3M454-3L10 Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA)
HT4025L3-10 PRIMARY Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN)
HT4025L3-10 PRIMARY Howmet Global Fastening Systems Inc (USA)
ST3M454-3L10 Heartland Precision Fasteners Inc (USA)
HT4025L3-10 Huck Intl Inc (USA)
ST3M454-3L10 PRIMARY Fastener Innovation Technology, Inc. Dba F I T (USA)
HT4025L3-10 PRIMARY Hi-Shear Corporation (USA)
ST3M454-3L10 The Boeing Company Div Defense (USA)
HT4025L3-10 Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA)
11905-3L10 Reid Products Inc. Dba Reid Products Inc (USA)
HT4025L3-10 Sps Technologies Inc (USA)
Related Parts
5315-00-034-3590INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
139-461-5

Frequently Asked Questions

What is NSN 5305-00-539-5326?

NSN 5305-00-539-5326 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-539-5326?

NSN 5305-00-539-5326 has 23 cross-referenced part numbers: HT4025L3-10 (Huck International, Inc), 10125364 (Nimikkeistokeskus Ncb Finland), HT4025L3-10 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana), HT4025L3-10 (Sps Technologies, Llc Dba PB Fasteners), ST3M454-3L10 (Houston Precision Fasteners I Lp) and 18 more.

What NSN replaces 5305-00-539-5326?

There is 1 known substitute for 5305-00-539-5326: 5315-00-034-3590. Verify interchangeability with system specifications before substitution.

What are the specifications of HT4025L3-10?

Key specifications for HT4025L3-10: Thread Quantity Per Inch: 32; Thread Length: 0.406 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN; Countersink Angle: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM. 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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