PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X1278Plug,pipe

Meritor Heavy Vehicle Systems, Llc · NSN 4730-00-293-7476 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-293-7476 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-293-7476. Primary manufacturer part number: X1278.
Features
  • Plug,pipe — FSC 4730
  • Nominal Thread Size: 1.250 INCHES EXTERNAL IN
  • Head Type: SOLID
  • Body Type: SOLID
  • Thread Direction: RIGHT-HAND EXTERNAL
  • Material: IRON OVERALL
  • Connection Style: PLAIN
  • Drive End Style: RECESSED SQUARE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Plug,pipe, cataloged under National Stock Number 4730-00-293-7476, 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 Meritor Heavy Vehicle Systems, Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-293-7476
Primary Part NumberX1278
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMeritor Heavy Vehicle Systems, Llc
StatusCANCELLED
Nominal Thread Size1.250 INCHES EXTERNAL IN
Head TypeSOLID
Body TypeSOLID
Thread DirectionRIGHT-HAND EXTERNAL
MaterialIRON OVERALL
Connection StylePLAIN
Drive End StyleRECESSED SQUARE
Nominal Pipe Size for Which Designed1.250 INCHES IN
Thread Series DesignatorNPT EXTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-640-0279 INTERCHANGEABLE
Plug,pipe
Cross-Reference Index
Part NumberManufacturer
X1278 PRIMARY Meritor Heavy Vehicle Systems, Llc (USA)
X1278 Meritor Industrial Products, Llc (USA)
Related Parts
4730-00-640-0279INTERCHANGEABLE
PLUG,PIPE

Frequently Asked Questions

What is NSN 4730-00-293-7476?

NSN 4730-00-293-7476 is a Plug,pipe, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-293-7476?

NSN 4730-00-293-7476 has 2 cross-referenced part numbers: X1278 (Meritor Heavy Vehicle Systems, Llc), X1278 (Meritor Industrial Products, Llc).

What NSN replaces 4730-00-293-7476?

There is 1 known substitute for 4730-00-293-7476: 4730-00-640-0279. Verify interchangeability with system specifications before substitution.

What are the specifications of X1278?

Key specifications for X1278: Nominal Thread Size: 1.250 INCHES EXTERNAL IN; Head Type: SOLID; Body Type: SOLID; Thread Direction: RIGHT-HAND EXTERNAL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-293-7476 still in active supply?

NSN 4730-00-293-7476 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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