PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50306Spring,helical,torsion

Sealcraft Corporation · NSN 5360-00-352-8629 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-352-8629 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-352-8629. Primary manufacturer part number: 50306.
Features
  • Spring,helical,torsion — FSC 5360
  • Style Designator: SINGLE TORSION RIGHT HAND
  • Coil Axis to Center Section Distance: 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
  • Inside Diameter: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
  • Center Section Width: 1.000 INCHES NOMINAL IN
  • Center Style: SQUARE TYPE
  • Material: STEEL OVERALL
  • 2 verified cross-references
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,torsion, cataloged under National Stock Number 5360-00-352-8629, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sealcraft Corporation. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-352-8629
Primary Part Number50306
Item NameSpring,helical,torsion
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerSealcraft Corporation
StatusACTIVE
Style DesignatorSINGLE TORSION RIGHT HAND
Coil Axis to Center Section Distance1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
Inside Diameter0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Center Section Width1.000 INCHES NOMINAL IN
Center StyleSQUARE TYPE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5315-00-119-654150306 INTERCHANGEABLE
Pin,shoulder,headless
Hamilton Sundstrand Corporation Dba Collins Aerospace
5905-00-215-4803A50306 INTERCHANGEABLE
Resistor Assembly
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5305-00-288-2967 INTERCHANGEABLE
Setscrew
5310-00-521-8741SCB69325-2 INTERCHANGEABLE
Washer,flat
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5331-00-536-68352-220 N674-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5805-01-284-35020050300630 INTERCHANGEABLE
Intermediate Distributing Frame,
Newton Instrument Company Dba Newton Instrument Co
5331-01-345-232350306 INTERCHANGEABLE
O-Ring
Paccar Winch Inc Dba Paccar Winch Division
5330-01-627-316350306 INTERCHANGEABLE
Seal,plain Encased
Aerocontrolex Group, Inc.
Cross-Reference Index
Part NumberManufacturer
866617 Clark Equipment Co (USA)
50306 PRIMARY Sealcraft Corporation (USA)
Related Parts
5315-00-119-6541INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
50306
5905-00-215-4803INTERCHANGEABLE
RESISTOR ASSEMBLY
A50306
5305-00-288-2967INTERCHANGEABLE
SETSCREW
5310-00-521-8741INTERCHANGEABLE
WASHER,FLAT
SCB69325-2
5331-00-536-6835INTERCHANGEABLE
O-RING
2-220 N674-70
5805-01-284-3502INTERCHANGEABLE
INTERMEDIATE DISTRIBUTING FRAME,
0050300630
5331-01-345-2323INTERCHANGEABLE
O-RING
50306
5330-01-627-3163INTERCHANGEABLE
SEAL,PLAIN ENCASED
50306

Frequently Asked Questions

What is NSN 5360-00-352-8629?

NSN 5360-00-352-8629 is a Spring,helical,torsion, manufactured by Sealcraft Corporation, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-352-8629?

NSN 5360-00-352-8629 has 2 cross-referenced part numbers: 866617 (Clark Equipment Co), 50306 (Sealcraft Corporation).

What NSN replaces 5360-00-352-8629?

There are 8 known substitutes for 5360-00-352-8629: 5315-00-119-6541, 5905-00-215-4803, 5305-00-288-2967 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50306?

Key specifications for 50306: Style Designator: SINGLE TORSION RIGHT HAND; Coil Axis to Center Section Distance: 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN; Inside Diameter: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Center Section Width: 1.000 INCHES NOMINAL IN. 6 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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