PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51846-125Nipple,pipe

Itt Grinnell Corp · NSN 4730-00-196-2020 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-196-2020 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-196-2020. Primary manufacturer part number: MS51846-125.
Features
  • Nipple,pipe — FSC 4730
  • Style Designator: LONG
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Thread Series Designator: NPT ALL ENDS
  • Nominal Overall Length: 5.500 INCHES IN
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Material Document and Classification: ASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Nipple,pipe, cataloged under National Stock Number 4730-00-196-2020, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Itt Grinnell Corp. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-196-2020
Primary Part NumberMS51846-125
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerItt Grinnell Corp
StatusACTIVE
Style DesignatorLONG
Nominal Thread Size1.250 INCHES ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
Nominal Overall Length5.500 INCHES IN
Connection StylePLAIN (PIPE) ALL ENDS
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Material Document and ClassificationASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorNPT ALL ENDS
Nominal Thread Size1.250 INCHES ALL ENDS IN
Specification/standard Data81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
Style DesignatorLONG
Material Document and ClassificationASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Specification/standard Data81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
MaterialCOPPER ALLOY OVERALL
Nominal Overall Length5.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4730-00-116-9614B687R-193B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-1965B687R-12B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-1969 INTERCHANGEABLE
Nipple,pipe
4730-00-196-1972B687R-27B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-1973ASTM B687R-28B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-1986 INTERCHANGEABLE
Nipple,pipe
4730-00-196-2011B687R-105B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-196-2013 INTERCHANGEABLE
Nipple,pipe
4730-00-196-2030 INTERCHANGEABLE
Nipple,pipe
4730-00-196-2032 INTERCHANGEABLE
Nipple,pipe
Cross-Reference Index
Part NumberManufacturer
MS51846-125 Itt Grinnell Corp (USA)
MS51846-125 Mindeco Corp (USA)
MS51846-125 Hydro-Fitting Manufacturing Corporation (USA)
MS51846-125 Ga Pipe Inc Dba Trenton Pipe Nipple Co (USA)
MS51846-125 U-Brand Corp (USA)
ASTM B687 American Society for Testing and Materials Dba Astm International (USA)
MS51846-125 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51846 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51846-125 Wheeling Machine Products Co (USA)
WWN351 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51846-125 Harsco Corp Dba Capitol Mfg (USA)
Related Parts
4730-00-116-9614INTERCHANGEABLE
NIPPLE,PIPE
B687R-193B
4730-00-196-1965INTERCHANGEABLE
NIPPLE,PIPE
B687R-12B
4730-00-196-1969INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-1972INTERCHANGEABLE
NIPPLE,PIPE
B687R-27B
4730-00-196-1973INTERCHANGEABLE
NIPPLE,PIPE
ASTM B687R-28B
4730-00-196-1986INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-2011INTERCHANGEABLE
NIPPLE,PIPE
B687R-105B
4730-00-196-2013INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-2030INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-2032INTERCHANGEABLE
NIPPLE,PIPE
4730-00-196-2034INTERCHANGEABLE
NIPPLE,PIPE

Frequently Asked Questions

What is NSN 4730-00-196-2020?

NSN 4730-00-196-2020 is a Nipple,pipe, manufactured by Itt Grinnell Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-196-2020?

NSN 4730-00-196-2020 has 11 cross-referenced part numbers: MS51846-125 (Itt Grinnell Corp), MS51846-125 (Mindeco Corp), MS51846-125 (Hydro-Fitting Manufacturing Corporation), MS51846-125 (Ga Pipe Inc Dba Trenton Pipe Nipple Co), MS51846-125 (U-Brand Corp) and 6 more.

What NSN replaces 4730-00-196-2020?

There are 11 known substitutes for 4730-00-196-2020: 4730-00-116-9614, 4730-00-196-1965, 4730-00-196-1969 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51846-125?

Key specifications for MS51846-125: Style Designator: LONG; Nominal Thread Size: 1.250 INCHES ALL ENDS IN; Thread Series Designator: NPT ALL ENDS; Nominal Overall Length: 5.500 INCHES IN. 16 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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