PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

340 5/8Snap Hook

Ridgeway Manufacturing Corporation · NSN 5340-01-088-3810 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-088-3810 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-088-3810. Primary manufacturer part number: 340 5/8.
Features
  • Snap Hook — FSC 5340
  • Material: IRON CAST OR IRON MALLEABLE HOOK
  • Material: STEEL BLADE
  • Hook Style Designator: SPRING BLADE
  • Rubber Covered Feature: NOT INCLUDED
  • End Position: CONNECTION END IN SAME PLANE AS HOOK END
  • Design Type: FIXED
  • Unattached Ring: NOT INCLUDED
Applications
  • Applications requiring Iron Cast or Iron Malleable Hook construction
General Description

The Snap Hook, cataloged under National Stock Number 5340-01-088-3810, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ridgeway Manufacturing Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-088-3810
Primary Part Number340 5/8
Item NameSnap Hook
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerRidgeway Manufacturing Corporation
StatusCANCELLED
MaterialIRON CAST OR IRON MALLEABLE HOOK
MaterialSTEEL BLADE
Hook Style DesignatorSPRING BLADE
Rubber Covered FeatureNOT INCLUDED
End PositionCONNECTION END IN SAME PLANE AS HOOK END
Design TypeFIXED
Unattached RingNOT INCLUDED
Unit Package TypeBOX
End Connection StyleLOOP
Inside Width0.625 INCHES NOMINAL IN
Inside Length0.625 INCHES NOMINAL IN
Unit Package Quantity10
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueEA
Verified Substitutes 9
3455-00-222-413319945 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5985-00-284-3354 INTERCHANGEABLE
Isolator,radio Frequency Reflect
5815-00-755-7343 INTERCHANGEABLE
Teletypewriter Subassembly
2920-01-102-070934058 INTERCHANGEABLE
Coil,ignition
Curtis Dyna-Fog, Ltd.
5998-01-361-7530 INTERCHANGEABLE
Electronic Components Assembly
8135-01-612-602730458 INTERCHANGEABLE
Cushioning Material,packaging
Charles Reed Knight Jr Dba Knight's Armament Company
5975-01-622-485130458 INTERCHANGEABLE
Plate,wall,electrical
Mulberry Metal Products Inc
5975-01-669-534530458 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Sea-Bird Electronics, Inc Dba Sea-Bird Scientific
5910-01-688-089130458 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Vicor Corp Dba Vicorpowercom
Cross-Reference Index
Part NumberManufacturer
340 5/8 Ridgeway Manufacturing Corporation (USA)
304-5/8 Ridgeway Manufacturing Corporation (USA)
340-5/8 Ridgeway Manufacturing Corporation (USA)
Related Parts
3455-00-222-4133INTERCHANGEABLE
REAMER,MACHINE
19945
5985-00-284-3354INTERCHANGEABLE
ISOLATOR,RADIO FREQUENCY REFLECT
5815-00-755-7343INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
2920-01-102-0709INTERCHANGEABLE
COIL,IGNITION
34058
5998-01-361-7530INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
8135-01-612-6027INTERCHANGEABLE
CUSHIONING MATERIAL,PACKAGING
30458
5975-01-622-4851INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
30458
5975-01-669-5345INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
30458
5910-01-688-0891INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
30458

Frequently Asked Questions

What is NSN 5340-01-088-3810?

NSN 5340-01-088-3810 is a Snap Hook, manufactured by Ridgeway Manufacturing Corporation, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-01-088-3810?

NSN 5340-01-088-3810 has 3 cross-referenced part numbers: 340 5/8 (Ridgeway Manufacturing Corporation), 304-5/8 (Ridgeway Manufacturing Corporation), 340-5/8 (Ridgeway Manufacturing Corporation).

What NSN replaces 5340-01-088-3810?

There are 9 known substitutes for 5340-01-088-3810: 3455-00-222-4133, 5985-00-284-3354, 5815-00-755-7343 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 340 5/8?

Key specifications for 340 5/8: Material: IRON CAST OR IRON MALLEABLE HOOK; Material: STEEL BLADE; Hook Style Designator: SPRING BLADE; Rubber Covered Feature: NOT INCLUDED. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-01-088-3810 still in active supply?

NSN 5340-01-088-3810 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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