PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16-428Ring,retaining

Metrex Valve Corp. Dba Metrex Valve Corp · NSN 5325-01-481-7221 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-481-7221 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-481-7221. Primary manufacturer part number: 16-428.
Features
  • Ring,retaining — FSC 5325
  • Material: COPPER ALLOY
  • 3 verified cross-references
  • Primary manufacturer: Metrex Valve Corp. Dba Metrex Valve Corp
Applications
  • Applications requiring Copper Alloy construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-481-7221, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-481-7221
Primary Part Number16-428
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMetrex Valve Corp. Dba Metrex Valve Corp
StatusACTIVE
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-00-036-186216428 INTERCHANGEABLE
Disk,valve
Ashcroft Inc Dba Heise
5935-00-283-2950 INTERCHANGEABLE
Connector,plug,electrical
5935-00-331-14168176846 INTERCHANGEABLE
Connector,plug,electrical
Us Army Aviation and Missile Command
5950-00-682-3063 INTERCHANGEABLE
Transformer,pulse
7930-01-392-7560101659 INTERCHANGEABLE
Detergent,laundry
Ecolab Inc
6515-01-518-2941G00850 INTERCHANGEABLE
Needle,biopsy
Cook Medical Llc
5310-01-524-9824164-28 INTERCHANGEABLE
Nut,plain,hexagon
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
6515-01-591-435005.002.007S INTERCHANGEABLE
Blade,bone Saw,power
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5330-01-699-355916428 INTERCHANGEABLE
Seal,plain
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Cross-Reference Index
Part NumberManufacturer
EHOMM-3130-NF2 Metrex Valve Corp. Dba Metrex Valve Corp (USA)
EHOMM-3130-NF2 ITEM 3 Metrex Valve Corp. Dba Metrex Valve Corp (USA)
16-428 PRIMARY Metrex Valve Corp. Dba Metrex Valve Corp (USA)
Related Parts
4820-00-036-1862INTERCHANGEABLE
DISK,VALVE
16428
5935-00-283-2950INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5935-00-331-1416INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
8176846
5950-00-682-3063INTERCHANGEABLE
TRANSFORMER,PULSE
7930-01-392-7560INTERCHANGEABLE
DETERGENT,LAUNDRY
101659
6515-01-518-2941INTERCHANGEABLE
NEEDLE,BIOPSY
G00850
5310-01-524-9824INTERCHANGEABLE
NUT,PLAIN,HEXAGON
164-28
6515-01-591-4350INTERCHANGEABLE
BLADE,BONE SAW,POWER
05.002.007S
5330-01-699-3559INTERCHANGEABLE
SEAL,PLAIN
16428

Frequently Asked Questions

What is NSN 5325-01-481-7221?

NSN 5325-01-481-7221 is a Ring,retaining, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-481-7221?

NSN 5325-01-481-7221 has 3 cross-referenced part numbers: EHOMM-3130-NF2 (Metrex Valve Corp. Dba Metrex Valve Corp), EHOMM-3130-NF2 ITEM 3 (Metrex Valve Corp. Dba Metrex Valve Corp), 16-428 (Metrex Valve Corp. Dba Metrex Valve Corp).

What NSN replaces 5325-01-481-7221?

There are 9 known substitutes for 5325-01-481-7221: 4820-00-036-1862, 5935-00-283-2950, 5935-00-331-1416 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16-428?

Key specifications for 16-428: Material: COPPER ALLOY; End Item Identification: 4" 2 WAY ELECTRIC ACTAUTED SEAWATER REGULATING VALVE WITH 0-5K OHM FEEDBACK POTENTIOMETER. 2 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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