PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4337Washer,lock

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5310-01-394-4473 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-394-4473 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-394-4473. Primary manufacturer part number: 4337.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL COMP 316 OVERALL
  • Outside Diameter: 7.6 MILLIMETERS NOMINAL MM
  • Material Thickness: 0.9 MILLIMETERS NOMINAL MM
  • Hole Diameter: 4.1 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 5310-01-394-4473, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-394-4473
Primary Part Number4337
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL COMP 316 OVERALL
Outside Diameter7.6 MILLIMETERS NOMINAL MM
Material Thickness0.9 MILLIMETERS NOMINAL MM
Hole Diameter4.1 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5306-00-208-53824337 INTERCHANGEABLE
Bolt,machine
Brinkley Technology Group Llc Dba Hercules Manufacturing
2805-00-386-34296107385 INTERCHANGEABLE
Valve,poppet,engine
General Motors Llc Dba General Motors Llc
4720-00-393-3908 INTERCHANGEABLE
Hose Assembly,nonmetallic
4520-00-871-83934337 INTERCHANGEABLE
Heating Element,electrical,nonim
Hoyt Corporation
5935-01-034-82204337 INTERCHANGEABLE
Connector Body,plug,electrical
General Microwave Corporation Div Kratos Microwave Electronics
5355-01-062-22474337 INTERCHANGEABLE
Knob
Avo Intl
4820-01-091-294692031E INTERCHANGEABLE
Seal Union Assembly,valve
Griswold Industries Dba Cla-Val Co
2925-01-178-00634337 INTERCHANGEABLE
Switch,lock,ignition
Adams Rite Aerospace, Inc
5330-01-324-884843-37 INTERCHANGEABLE
Ring,wiper
Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
5305-01-387-12524337 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
B4/A4/DIN127 Tigges Gmbh Und Co.kg (DEU)
4337 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
5306-00-208-5382INTERCHANGEABLE
BOLT,MACHINE
4337
2805-00-386-3429INTERCHANGEABLE
VALVE,POPPET,ENGINE
6107385
4720-00-393-3908INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4520-00-871-8393INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
4337
5935-01-034-8220INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
4337
5355-01-062-2247INTERCHANGEABLE
KNOB
4337
4820-01-091-2946INTERCHANGEABLE
SEAL UNION ASSEMBLY,VALVE
92031E
2925-01-178-0063INTERCHANGEABLE
SWITCH,LOCK,IGNITION
4337
5330-01-324-8848INTERCHANGEABLE
RING,WIPER
43-37
5305-01-387-1252INTERCHANGEABLE
SCREW,SHOULDER
4337

Frequently Asked Questions

What is NSN 5310-01-394-4473?

NSN 5310-01-394-4473 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 5310-01-394-4473?

NSN 5310-01-394-4473 has 2 cross-referenced part numbers: B4/A4/DIN127 (Tigges Gmbh Und Co.kg), 4337 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 5310-01-394-4473?

There are 10 known substitutes for 5310-01-394-4473: 5306-00-208-5382, 2805-00-386-3429, 4720-00-393-3908 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4337?

Key specifications for 4337: Style Designator: SPLIT HELICAL-RIGHT HAND; Material: STEEL COMP 316 OVERALL; Outside Diameter: 7.6 MILLIMETERS NOMINAL MM; Material Thickness: 0.9 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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