PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K-338Modification Kit,marine Hardware

Metrex Valve Corp. Dba Metrex Valve Corp · NSN 2040-01-644-4816 · FSC 2040 · No Item Name Available
Verified by PartsTable
NSN 2040-01-644-4816 — this item is cataloged by the U.S. Government under National Stock Number 2040-01-644-4816. Primary manufacturer part number: K-338.
Features
  • Modification Kit,marine Hardware — FSC 2040
  • Component Document Origin: INDUSTRIAL
  • 2 verified cross-references
  • Primary manufacturer: Metrex Valve Corp. Dba Metrex Valve Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Modification Kit,marine Hardware, cataloged under National Stock Number 2040-01-644-4816, is classified within Federal Supply Class 2040 (No Item Name Available) of the Ship and Marine Equipment group. The primary manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 1 verified specification, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2040-01-644-4816
Primary Part NumberK-338
Item NameModification Kit,marine Hardware
FSC / FSG2040 / 20 — No Item Name Available
ManufacturerMetrex Valve Corp. Dba Metrex Valve Corp
StatusACTIVE
Component Document OriginINDUSTRIAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5120-00-132-6939 INTERCHANGEABLE
Contact Positioner,terminal Crim
3010-01-083-6028133-9083 INTERCHANGEABLE
Coupling,shaft,flexible
Nautel Maine Inc
5310-01-127-833288268 INTERCHANGEABLE
Nut
Williams International Co., L.l.c.
6630-01-144-4643K338 INTERCHANGEABLE
Tester,gasoline Gum Content
Koehler Instrument Company, Inc.
5998-01-176-53628002572 INTERCHANGEABLE
Electronic Components Assembly
Honeywell International Inc. Dba Honeywell International
5120-01-335-8631K338 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
5340-01-350-9824K-338 INTERCHANGEABLE
Boot,dust and Moisture Seal
Kinnarney Rubber Co Inc
Cross-Reference Index
Part NumberManufacturer
K-338 PRIMARY Metrex Valve Corp. Dba Metrex Valve Corp (USA)
H-338 Bronswerk Marine Inc (CAN)
Related Parts
5120-00-132-6939INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
3010-01-083-6028INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
133-9083
5310-01-127-8332INTERCHANGEABLE
NUT
88268
6630-01-144-4643INTERCHANGEABLE
TESTER,GASOLINE GUM CONTENT
K338
5998-01-176-5362INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
8002572
5120-01-335-8631INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
K338
5340-01-350-9824INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
K-338

Frequently Asked Questions

What is NSN 2040-01-644-4816?

NSN 2040-01-644-4816 is a Modification Kit,marine Hardware, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 2040 (No Item Name Available). Status: active.

What are the part numbers for NSN 2040-01-644-4816?

NSN 2040-01-644-4816 has 2 cross-referenced part numbers: K-338 (Metrex Valve Corp. Dba Metrex Valve Corp), H-338 (Bronswerk Marine Inc).

What NSN replaces 2040-01-644-4816?

There are 7 known substitutes for 2040-01-644-4816: 5120-00-132-6939, 3010-01-083-6028, 5310-01-127-8332 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K-338?

Key specifications for K-338: Special Features: REPAIR KIT FOR 4" MDFPM-3130-FL-3W (REFRIGERANT PRESSURE ACTUATED) AND 4" MDFPMT-3130-FL-3W (THERMOSTATIC ACTUATED) MODULATING CONTROL WATER REGULATING VALVE. W; Part Name Assigned by Controlling Agency: KIT,REPAIR; Component Document Origin: INDUSTRIAL; End Item Identification: VALVE,REGULATOR. 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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