PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3939Washer,lock

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5310-01-394-4468 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-394-4468 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-394-4468. Primary manufacturer part number: 3939.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.6 MILLIMETERS NOMINAL MM
  • Material: STEEL COMP 316 OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Hole Diameter: 3.1 MILLIMETERS NOMINAL MM
  • Outside Diameter: 6.3 MILLIMETERS NOMINAL MM
  • 2 verified cross-references
  • Primary manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 316 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-394-4468, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 5 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
NSN5310-01-394-4468
Primary Part Number3939
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Material Thickness0.6 MILLIMETERS NOMINAL MM
MaterialSTEEL COMP 316 OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Hole Diameter3.1 MILLIMETERS NOMINAL MM
Outside Diameter6.3 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3040-00-070-22853939 INTERCHANGEABLE
Ring,piston
Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division
5360-00-253-69083939 INTERCHANGEABLE
Spring,helical,compression
Komatsu America Corporation
5930-00-272-1401 INTERCHANGEABLE
Switch,toggle
5999-00-299-0901201146-2 INTERCHANGEABLE
Contact,electrical
Te Connectivity Corporation
5985-00-643-2759P3939 INTERCHANGEABLE
Probe,waveguide
Projects Unlimited Inc
5305-01-352-2009 INTERCHANGEABLE
Screw,machine
6520-01-365-21057000053331 INTERCHANGEABLE
Matrix,crown,dental
Solventum Us Llc
5340-01-572-34013939 INTERCHANGEABLE
Bumper
Palm Industries Inc
Cross-Reference Index
Part NumberManufacturer
B3/A4/DIN127 Tigges Gmbh Und Co.kg (DEU)
3939 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
3040-00-070-2285INTERCHANGEABLE
RING,PISTON
3939
5360-00-253-6908INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3939
5930-00-272-1401INTERCHANGEABLE
SWITCH,TOGGLE
5999-00-299-0901INTERCHANGEABLE
CONTACT,ELECTRICAL
201146-2
5985-00-643-2759INTERCHANGEABLE
PROBE,WAVEGUIDE
P3939
5305-01-352-2009INTERCHANGEABLE
SCREW,MACHINE
6520-01-365-2105INTERCHANGEABLE
MATRIX,CROWN,DENTAL
7000053331
5340-01-572-3401INTERCHANGEABLE
BUMPER
3939

Frequently Asked Questions

What is NSN 5310-01-394-4468?

NSN 5310-01-394-4468 is a Washer,lock, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-394-4468?

NSN 5310-01-394-4468 has 2 cross-referenced part numbers: B3/A4/DIN127 (Tigges Gmbh Und Co.kg), 3939 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 5310-01-394-4468?

There are 8 known substitutes for 5310-01-394-4468: 3040-00-070-2285, 5360-00-253-6908, 5930-00-272-1401 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3939?

Key specifications for 3939: Material Thickness: 0.6 MILLIMETERS NOMINAL MM; Material: STEEL COMP 316 OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Hole Diameter: 3.1 MILLIMETERS NOMINAL MM. 5 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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