PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-1/2IN-AT-PLUGPlug,pipe

Spirax Sarco Inc Dba Spirax Sarco · NSN 4730-01-071-4075 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-071-4075 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-071-4075. Primary manufacturer part number: 1-1/2IN-AT-PLUG.
Features
  • Plug,pipe — FSC 4730
  • Thread Series Designator: NPT EXTERNAL
  • Nondefinitive Spec/std Data: 2 TYPE AND A STYLE
  • Thread Direction: RIGHT-HAND EXTERNAL
  • Specification/standard Data: 96906-MS51884 GOVERNMENT STANDARD
  • Drive End Style: RAISED SQUARE
  • Thread Class: 2A EXTERNAL A
  • Body Type: SOLID
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron or Steel Overall construction
General Description

The Plug,pipe, cataloged under National Stock Number 4730-01-071-4075, 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 Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-071-4075
Primary Part Number1-1/2IN-AT-PLUG
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Thread Series DesignatorNPT EXTERNAL
Nondefinitive Spec/std Data2 TYPE AND A STYLE
Thread DirectionRIGHT-HAND EXTERNAL
Specification/standard Data96906-MS51884 GOVERNMENT STANDARD
Drive End StyleRAISED SQUARE
Thread Class2A EXTERNAL A
Body TypeSOLID
Head TypeSOLID
Connection StylePLAIN
Nominal Thread Size1.500 INCHES EXTERNAL IN
Nominal Pipe Size for Which Designed1.500 INCHES IN
MaterialIRON OR STEEL OVERALL
Thread Quantity Per Inch11-1/2 EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4720-00-111-50913207 INTERCHANGEABLE
Hose Assembly,metallic
Alter Harry Co the Div of T E C
5930-00-258-5452 INTERCHANGEABLE
Handle,switch
3120-00-330-80003207-00 INTERCHANGEABLE
Bearing,washer,thrust
Avox Systems Inc Dba Avox Systems Inc
2825-00-373-06973207 INTERCHANGEABLE
Wheel,turbine
Northrop Grumman Systems Corporation Div Marine Systems
6610-00-464-67483137-2 INTERCHANGEABLE
Indicator Standoff
Kearflex Engineering Company
3110-00-516-54900170006 INTERCHANGEABLE
Bearing,ball,annular
Edwards Manufacturing a Division of Hypro Corp. Dba Emi
3110-00-554-60366207C3E3TX9 INTERCHANGEABLE
Bearing,ball,annular
Nsk Corp Bearing Div
3110-00-554-6149 INTERCHANGEABLE
Bearing,ball,annular
5965-00-715-6158 INTERCHANGEABLE
Cushion,ear
5961-00-752-0648 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
1-1/2IN-AT-PLUG Spirax Sarco Inc Dba Spirax Sarco (USA)
WW-P-471 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3207 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
MS51884-15 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
34189SA PIECE 2 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
WW-P-471AASBUH Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AT1/1/2PLUG Spirax Sarco Inc Dba Spirax Sarco (USA)
34235CA ITEM 21 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
0103001 Mkt Geotechnical Systems (USA)
Related Parts
4720-00-111-5091INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
3207
5930-00-258-5452INTERCHANGEABLE
HANDLE,SWITCH
3120-00-330-8000INTERCHANGEABLE
BEARING,WASHER,THRUST
3207-00
2825-00-373-0697INTERCHANGEABLE
WHEEL,TURBINE
3207
6610-00-464-6748INTERCHANGEABLE
INDICATOR STANDOFF
3137-2
3110-00-516-5490INTERCHANGEABLE
BEARING,BALL,ANNULAR
0170006
3110-00-554-6036INTERCHANGEABLE
BEARING,BALL,ANNULAR
6207C3E3TX9
3110-00-554-6149INTERCHANGEABLE
BEARING,BALL,ANNULAR
5965-00-715-6158INTERCHANGEABLE
CUSHION,EAR
5961-00-752-0648INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5910-00-872-6544INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
5975-01-167-5797INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
3207

Frequently Asked Questions

What is NSN 4730-01-071-4075?

NSN 4730-01-071-4075 is a Plug,pipe, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-071-4075?

NSN 4730-01-071-4075 has 9 cross-referenced part numbers: 1-1/2IN-AT-PLUG (Spirax Sarco Inc Dba Spirax Sarco), WW-P-471 (Federal Specifications Promulgated by General Services Administration Washington DC), 3207 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), MS51884-15 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 34189SA PIECE 2 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.) and 4 more.

What NSN replaces 4730-01-071-4075?

There are 12 known substitutes for 4730-01-071-4075: 4720-00-111-5091, 5930-00-258-5452, 3120-00-330-8000 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-1/2IN-AT-PLUG?

Key specifications for 1-1/2IN-AT-PLUG: Thread Series Designator: NPT EXTERNAL; Nondefinitive Spec/std Data: 2 TYPE AND A STYLE; Thread Direction: RIGHT-HAND EXTERNAL; Specification/standard Data: 96906-MS51884 GOVERNMENT STANDARD. 13 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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