PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40399Snap Hook

Lynn Electronics Llc · NSN 5340-01-471-7034 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-471-7034 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-471-7034. Primary manufacturer part number: 40399.
Features
  • Snap Hook — FSC 5340
  • Design Type: FIXED
  • Hook Style Designator: SLIDING BOLT
  • 4 verified cross-references
  • Primary manufacturer: Lynn Electronics Llc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Snap Hook, cataloged under National Stock Number 5340-01-471-7034, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lynn Electronics Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-471-7034
Primary Part Number40399
Item NameSnap Hook
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerLynn Electronics Llc
StatusACTIVE
Design TypeFIXED
Hook Style DesignatorSLIDING BOLT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
1630-00-672-441040-399 INTERCHANGEABLE
Control Box Assembly,anti-Skid D
Hydro-Aire Aerospace Corp
5815-00-714-1413 INTERCHANGEABLE
Bar,locking,teletypewriter
4820-01-244-536640399-903 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-256-361340399-901 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-464-445140399-911 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-466-248540399-910 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-467-549740399-410 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40399 PRIMARY Lynn Electronics Llc (USA)
63406 Columbus Mckinnon Corporation Dba Cm Shredder (USA)
63406 Miniature Automation Systems Inc (USA)
00746 Durbin-Durco Inc P O Box 180600 Chattanooga Tn 37406 (USA)
Related Parts
1630-00-672-4410INTERCHANGEABLE
CONTROL BOX ASSEMBLY,ANTI-SKID D
40-399
5815-00-714-1413INTERCHANGEABLE
BAR,LOCKING,TELETYPEWRITER
4820-01-244-5366INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-903
4820-01-256-3613INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-901
4820-01-464-4451INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-911
4820-01-466-2485INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-910
4820-01-467-5497INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40399-410

Frequently Asked Questions

What is NSN 5340-01-471-7034?

NSN 5340-01-471-7034 is a Snap Hook, manufactured by Lynn Electronics Llc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-471-7034?

NSN 5340-01-471-7034 has 4 cross-referenced part numbers: 40399 (Lynn Electronics Llc), 63406 (Columbus Mckinnon Corporation Dba Cm Shredder), 63406 (Miniature Automation Systems Inc), 00746 (Durbin-Durco Inc P O Box 180600 Chattanooga Tn 37406).

What NSN replaces 5340-01-471-7034?

There are 7 known substitutes for 5340-01-471-7034: 1630-00-672-4410, 5815-00-714-1413, 4820-01-244-5366 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40399?

Key specifications for 40399: End Item Identification: 2330-01-303-8832 M1000 CHETTL TRAILER; Overall Length: 3.500 INCHES NOMINAL IN; Design Type: FIXED; Hook Style Designator: SLIDING BOLT. 4 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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