PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16-231O-Ring

Metrex Valve Corp. Dba Metrex Valve Corp · NSN 5331-01-425-2995 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-425-2995 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-425-2995. Primary manufacturer part number: 16-231.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 2 verified cross-references
  • Primary manufacturer: Metrex Valve Corp. Dba Metrex Valve Corp
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-425-2995, is classified within Federal Supply Class 5331 (O-Ring) 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 2 commercial cross-references from 1 manufacturer, 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
NSN5331-01-425-2995
Primary Part Number16-231
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMetrex Valve Corp. Dba Metrex Valve Corp
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-489-644016231 INTERCHANGEABLE
Screw,adjusting,val
Pneudraulics, Inc.
3825-00-705-4626C1530-3 INTERCHANGEABLE
Valve Poppet Check
Parker Hannifin Corporation Div Cylinder Division
5940-00-913-938410-707-1-01 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
6240-01-285-761645PAR38CAP/SPL/FL/130V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
6515-01-590-7271206.080 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
2040-01-605-99461623-1 INTERCHANGEABLE
Nrp,stern Door Asse
Jered Llc
5120-01-662-019016-231 INTERCHANGEABLE
Punch,drive Pin
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
MM-3130B-11M-S ITEM 39 Metrex Valve Corp. Dba Metrex Valve Corp (USA)
16-231 PRIMARY Metrex Valve Corp. Dba Metrex Valve Corp (USA)
Related Parts
4820-00-489-6440INTERCHANGEABLE
SCREW,ADJUSTING,VAL
16231
3825-00-705-4626INTERCHANGEABLE
VALVE POPPET CHECK
C1530-3
5940-00-913-9384INTERCHANGEABLE
TERMINAL,STUD
10-707-1-01
6240-01-285-7616INTERCHANGEABLE
LAMP,INCANDESCENT
45PAR38CAP/SPL/FL/130V
6515-01-590-7271INTERCHANGEABLE
SCREW,BONE
206.080
2040-01-605-9946INTERCHANGEABLE
NRP,STERN DOOR ASSE
1623-1
5120-01-662-0190INTERCHANGEABLE
PUNCH,DRIVE PIN
16-231

Frequently Asked Questions

What is NSN 5331-01-425-2995?

NSN 5331-01-425-2995 is a O-Ring, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-425-2995?

NSN 5331-01-425-2995 has 2 cross-referenced part numbers: MM-3130B-11M-S ITEM 39 (Metrex Valve Corp. Dba Metrex Valve Corp), 16-231 (Metrex Valve Corp. Dba Metrex Valve Corp).

What NSN replaces 5331-01-425-2995?

There are 7 known substitutes for 5331-01-425-2995: 4820-00-489-6440, 3825-00-705-4626, 5940-00-913-9384 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16-231?

Key specifications for 16-231: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 1 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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