PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4338Washer,lock

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5310-01-394-4475 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-394-4475 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-394-4475. Primary manufacturer part number: 4338.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 1.2 MILLIMETERS NOMINAL MM
  • Material: STEEL COMP 316 OVERALL
  • Outside Diameter: 9.2 MILLIMETERS NOMINAL MM
  • Hole Diameter: 5.1 MILLIMETERS NOMINAL MM
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 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 5310-01-394-4475, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-394-4475
Primary Part Number4338
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Material Thickness1.2 MILLIMETERS NOMINAL MM
MaterialSTEEL COMP 316 OVERALL
Outside Diameter9.2 MILLIMETERS NOMINAL MM
Hole Diameter5.1 MILLIMETERS NOMINAL MM
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5365-00-303-336343-3-8 INTERCHANGEABLE
Spacer,screw and Bo
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4720-00-393-3909 INTERCHANGEABLE
Hose Assembly,nonmetallic
3030-00-528-4752 INTERCHANGEABLE
Belt,v
3110-00-809-62914338 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
5305-01-068-84694338 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
4730-01-109-06468FTXB INTERCHANGEABLE
Adapter,straight,pipe to Tube
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Cross-Reference Index
Part NumberManufacturer
4338 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
B5/A4/DIN127 Tigges Gmbh Und Co.kg (DEU)
Related Parts
5365-00-303-3363INTERCHANGEABLE
SPACER,SCREW AND BO
43-3-8
4720-00-393-3909INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3030-00-528-4752INTERCHANGEABLE
BELT,V
3110-00-809-6291INTERCHANGEABLE
BEARING,BALL,ANNULAR
4338
5305-01-068-8469INTERCHANGEABLE
SCREW,SHOULDER
4338
4730-01-109-0646INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
8FTXB

Frequently Asked Questions

What is NSN 5310-01-394-4475?

NSN 5310-01-394-4475 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 5310-01-394-4475?

NSN 5310-01-394-4475 has 2 cross-referenced part numbers: 4338 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), B5/A4/DIN127 (Tigges Gmbh Und Co.kg).

What NSN replaces 5310-01-394-4475?

There are 6 known substitutes for 5310-01-394-4475: 5365-00-303-3363, 4720-00-393-3909, 3030-00-528-4752 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4338?

Key specifications for 4338: Material Thickness: 1.2 MILLIMETERS NOMINAL MM; Material: STEEL COMP 316 OVERALL; Outside Diameter: 9.2 MILLIMETERS NOMINAL MM; Hole Diameter: 5.1 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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