PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KNHL624JInsert,screw Thread

Howmet Global Fastening Systems Inc. Div Tridair Products · NSN 5325-00-957-0577 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-957-0577 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-957-0577. Primary manufacturer part number: KNHL624J.
Features
  • Insert,screw Thread — FSC 5325
  • Thread Series Designator: UNF
  • Style Designator: GROOVED KEYLOCK
  • Insert Size: 0.562-12 UNC 2A A
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Quantity Per Inch: 24
  • Features Provided: INDIVIDUALLY KEYED
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Insert,screw Thread, cataloged under National Stock Number 5325-00-957-0577, is classified within Federal Supply Class 5325 (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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-957-0577
Primary Part NumberKNHL624J
Item NameInsert,screw Thread
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc. Div Tridair Products
StatusCANCELLED
Thread Series DesignatorUNF
Style DesignatorGROOVED KEYLOCK
Insert Size0.562-12 UNC 2A A
Nominal Thread Size0.375 INCHES IN
Thread Quantity Per Inch24
Features ProvidedINDIVIDUALLY KEYED
Surface TreatmentPASSIVATE OVERALL
Full Internal Thread Length0.430 INCHES MINIMUM IN
Length0.500 INCHES NOMINAL IN
Internal Thread Relief Depth0.070 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5325-00-805-0339 INTERCHANGEABLE
Insert,screw Thread
Cross-Reference Index
Part NumberManufacturer
KNHL624 Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
KNHL624J PRIMARY Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
837492 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
KNHL624J Fairchild Fasteners Europe - Camloc Gmbh (DEU)
NAS1395C6L PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5325-00-805-0339INTERCHANGEABLE
INSERT,SCREW THREAD

Frequently Asked Questions

What is NSN 5325-00-957-0577?

NSN 5325-00-957-0577 is a Insert,screw Thread, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-957-0577?

NSN 5325-00-957-0577 has 5 cross-referenced part numbers: KNHL624 (Howmet Global Fastening Systems Inc. Div Tridair Products), KNHL624J (Howmet Global Fastening Systems Inc. Div Tridair Products), 837492 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament), KNHL624J (Fairchild Fasteners Europe - Camloc Gmbh), NAS1395C6L (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5325-00-957-0577?

There is 1 known substitute for 5325-00-957-0577: 5325-00-805-0339. Verify interchangeability with system specifications before substitution.

What are the specifications of KNHL624J?

Key specifications for KNHL624J: Thread Series Designator: UNF; Style Designator: GROOVED KEYLOCK; Insert Size: 0.562-12 UNC 2A A; Nominal Thread Size: 0.375 INCHES IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-957-0577 still in active supply?

NSN 5325-00-957-0577 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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