PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MP-125Port,test

Diagnetics Inc · NSN 4820-01-418-5157 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-418-5157 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-418-5157. Primary manufacturer part number: MP-125.
Features
  • Port,test — FSC 4820
  • Accessory Components and Quantity: CHAIN 1, PROTECTIVE CAP 1, O-RING SEAL 1
  • General Characteristics Item Description: SEAL IS VITON; PORT IS CONNECTED BY 0.125IN. MALE NPT CONNECTOR IN
  • Pressure Rating: ERR-060
  • 1 verified cross-reference
  • Primary manufacturer: Diagnetics Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Port,test, cataloged under National Stock Number 4820-01-418-5157, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Diagnetics Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-418-5157
Primary Part NumberMP-125
Item NamePort,test
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDiagnetics Inc
StatusACTIVE
Accessory Components and QuantityCHAIN 1, PROTECTIVE CAP 1, O-RING SEAL 1
General Characteristics Item DescriptionSEAL IS VITON; PORT IS CONNECTED BY 0.125IN. MALE NPT CONNECTOR IN
Pressure RatingERR-060
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-916-430421153 INTERCHANGEABLE
Packing
Industrial Technologies and Services Llc
Cross-Reference Index
Part NumberManufacturer
MP-125 Diagnetics Inc (USA)
Related Parts
5330-00-916-4304INTERCHANGEABLE
PACKING
21153

Frequently Asked Questions

What is NSN 4820-01-418-5157?

NSN 4820-01-418-5157 is a Port,test, manufactured by Diagnetics Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-418-5157?

NSN 4820-01-418-5157 has 1 cross-referenced part number: MP-125 (Diagnetics Inc).

What NSN replaces 4820-01-418-5157?

There is 1 known substitute for 4820-01-418-5157: 5330-00-916-4304. Verify interchangeability with system specifications before substitution.

What are the specifications of MP-125?

Key specifications for MP-125: End Item Identification: 3895-01-344-5480 - LIQUID BITUMINOUS MATERIAL DISTRIBUTOR; Accessory Components and Quantity: CHAIN 1, PROTECTIVE CAP 1, O-RING SEAL 1; Special Features: ALLOWS A HAND INSERTED PROBE TO ENTER A PRESSURIZED SYSTEM AND COMMUNICATE WITH THE FLUID WITHOUT LEAKAGE; CONTAINS A SELF-SEALING, SPRING LOADED CHECK VALVE; Overall Height: 1.875 INCHES NOMINAL IN. 6 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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