PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

251-4Snap Hook

Buckles International, Inc. · NSN 5340-00-205-5596 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-205-5596 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-205-5596. Primary manufacturer part number: 251-4.
Features
  • Snap Hook — FSC 5340
  • Material: IRON MALLEABLE HOOK
  • Material: IRON MALLEABLE CONNECTION END
  • Rubber Covered Feature: NOT INCLUDED
  • Unattached Ring: NOT INCLUDED
  • Hook Style Designator: PIVOT
  • End Connection Style: SWIVEL
  • Design Type: SWIVEL
Applications
  • Applications requiring Iron Malleable Hook construction
General Description

The Snap Hook, cataloged under National Stock Number 5340-00-205-5596, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Buckles International, Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-205-5596
Primary Part Number251-4
Item NameSnap Hook
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerBuckles International, Inc.
StatusACTIVE
MaterialIRON MALLEABLE HOOK
MaterialIRON MALLEABLE CONNECTION END
Rubber Covered FeatureNOT INCLUDED
Unattached RingNOT INCLUDED
Hook Style DesignatorPIVOT
End Connection StyleSWIVEL
Design TypeSWIVEL
Inside Width0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
5340-01-188-85192514 SUCCESSOR
Cover,access
Flowserve Corporation Dba Flowserve Div Services Business Unit
3110-00-151-809533378 INTERCHANGEABLE
Bearing,ball,annular
Be Aerospace Consumables Management Dba Consumables Solutions Div Consumables Solutions
Cross-Reference Index
Part NumberManufacturer
760-1802 STYLE 333 W. H. Smith Hardware Company, the (USA)
333-7/8 W. H. Smith Hardware Company, the (USA)
251-4 PRIMARY Buckles International, Inc. (USA)
Related Parts
5340-01-188-8519SUCCESSOR
COVER,ACCESS
2514
3110-00-151-8095INTERCHANGEABLE
BEARING,BALL,ANNULAR
33378

Frequently Asked Questions

What is NSN 5340-00-205-5596?

NSN 5340-00-205-5596 is a Snap Hook, manufactured by Buckles International, Inc., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-205-5596?

NSN 5340-00-205-5596 has 3 cross-referenced part numbers: 760-1802 STYLE 333 (W. H. Smith Hardware Company, the), 333-7/8 (W. H. Smith Hardware Company, the), 251-4 (Buckles International, Inc.).

What NSN replaces 5340-00-205-5596?

There are 2 known substitutes for 5340-00-205-5596: 5340-01-188-8519, 3110-00-151-8095. Verify interchangeability with system specifications before substitution.

What are the specifications of 251-4?

Key specifications for 251-4: Overall Length: 4.750 INCHES NOMINAL IN; Material: IRON MALLEABLE HOOK; Material: IRON MALLEABLE CONNECTION END; Rubber Covered Feature: NOT INCLUDED. 9 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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