PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

437-3-8Snap Hook

Buckles International, Inc. · NSN 5340-00-291-3546 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-291-3546 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-291-3546. Primary manufacturer part number: 437-3-8.
Features
  • Snap Hook — FSC 5340
  • Inside Width: 0.375 INCHES NOMINAL IN
  • End Connection Style: EYE
  • Material: IRON CONNECTION END
  • Material: COPPER ALLOY BLADE
  • Hook Style Designator: SPRING BLADE
  • Unattached Ring: NOT INCLUDED
  • Rubber Covered Feature: NOT INCLUDED
Applications
  • Applications requiring Iron Connection End construction
General Description

The Snap Hook, cataloged under National Stock Number 5340-00-291-3546, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-291-3546
Primary Part Number437-3-8
Item NameSnap Hook
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerBuckles International, Inc.
StatusCANCELLED
Inside Width0.375 INCHES NOMINAL IN
End Connection StyleEYE
MaterialIRON CONNECTION END
MaterialCOPPER ALLOY BLADE
Hook Style DesignatorSPRING BLADE
Unattached RingNOT INCLUDED
Rubber Covered FeatureNOT INCLUDED
MaterialIRON HOOK
Design TypeSWIVEL
Inside Length0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
No Item Name Available
Snap Hook
3110-00-100-059452618 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5945-00-174-68982Z7585-112 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-00-288-72394371 1-2 INTERCHANGEABLE
Valve,gate
Crane Co Div Valve Div
5330-00-343-1288437 INTERCHANGEABLE
Packing
Professional Pharmaceutical Corp
6105-00-344-034010688 INTERCHANGEABLE
Adapter,motor
Leavitt Machine Co Dba Dexter Precision Products Div Dexter Innovative Solutions Llc CAGE 6dqd2 Has Purchase Leav
5340-00-393-2139437 INTERCHANGEABLE
Snap Hook
Buckles International, Inc.
6230-00-402-23931000-30TLG INTERCHANGEABLE
Light,extension
Alert Stamping & Manufacturing Co., Inc. Dba Paul S Blanch
5950-00-444-0419984816-2 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
437-3-8 PRIMARY Buckles International, Inc. (USA)
70-1465 Department of Defense Project Manager-Mobile Electric Power (USA)
70-1464 Department of Defense Project Manager-Mobile Electric Power (USA)
437 Buckles International, Inc. (USA)
Related Parts
5340-00-858-1497SUCCESSOR
NO ITEM NAME AVAILABLE
5340-00-850-2391SUCCESSOR
SNAP HOOK
3110-00-100-0594INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
52618
5945-00-174-6898INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
2Z7585-112
4820-00-288-7239INTERCHANGEABLE
VALVE,GATE
4371 1-2
5330-00-343-1288INTERCHANGEABLE
PACKING
437
6105-00-344-0340INTERCHANGEABLE
ADAPTER,MOTOR
10688
5340-00-393-2139INTERCHANGEABLE
SNAP HOOK
437
6230-00-402-2393INTERCHANGEABLE
LIGHT,EXTENSION
1000-30TLG
5950-00-444-0419INTERCHANGEABLE
TRANSFORMER,POWER
984816-2
3030-00-528-4545INTERCHANGEABLE
BELT,V
3441-00-531-1518INTERCHANGEABLE
DIE,FLARING
101553-003

Frequently Asked Questions

What is NSN 5340-00-291-3546?

NSN 5340-00-291-3546 is a Snap Hook, manufactured by Buckles International, Inc., classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-00-291-3546?

NSN 5340-00-291-3546 has 4 cross-referenced part numbers: 437-3-8 (Buckles International, Inc.), 70-1465 (Department of Defense Project Manager-Mobile Electric Power), 70-1464 (Department of Defense Project Manager-Mobile Electric Power), 437 (Buckles International, Inc.).

What NSN replaces 5340-00-291-3546?

There are 12 known substitutes for 5340-00-291-3546: 5340-00-858-1497, 5340-00-850-2391, 3110-00-100-0594 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 437-3-8?

Key specifications for 437-3-8: Inside Width: 0.375 INCHES NOMINAL IN; End Connection Style: EYE; Material: IRON CONNECTION END; Material: COPPER ALLOY BLADE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-00-291-3546 still in active supply?

NSN 5340-00-291-3546 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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