PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103878Plug,pipe

Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc · NSN 4730-01-682-4172 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-682-4172 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-682-4172. Primary manufacturer part number: 103878.
Features
  • Plug,pipe — FSC 4730
  • Thread Direction: RIGHT-HAND EXTERNAL
  • Nominal Thread Size: 0.25 INCHES EXTERNAL IN
  • Drive End Style: RAISED SQUARE
  • Head Type: SOLID
  • Material: STEEL COMP 1112 OVERALL
  • Body Type: SOLID
  • 2 verified cross-references
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 1112 Overall construction
General Description

The Plug,pipe, cataloged under National Stock Number 4730-01-682-4172, 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 Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 6 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-682-4172
Primary Part Number103878
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerProgress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc
StatusACTIVE
Thread DirectionRIGHT-HAND EXTERNAL
Nominal Thread Size0.25 INCHES EXTERNAL IN
Drive End StyleRAISED SQUARE
Head TypeSOLID
MaterialSTEEL COMP 1112 OVERALL
Body TypeSOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-044-4577 INTERCHANGEABLE
Plug,pipe
4730-00-089-2515SAE J531 4 130109EC INTERCHANGEABLE
Plug,pipe
Sae International Dba Sae International
1005-00-136-2283103878 INTERCHANGEABLE
Boot,weather Shield
Cadillac Gage Textron Inc.
6115-00-242-2297103878 INTERCHANGEABLE
Generator Set,gasoline Engine
Textron Inc Jacobsen Div
4730-00-279-0985 INTERCHANGEABLE
Plug,pipe
2915-01-483-1322 INTERCHANGEABLE
Carburetor,float
Cross-Reference Index
Part NumberManufacturer
103878 General Motors Corp Electro-Motive Div (USA)
103878 PRIMARY Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA)
Related Parts
4730-00-044-4577INTERCHANGEABLE
PLUG,PIPE
4730-00-089-2515INTERCHANGEABLE
PLUG,PIPE
SAE J531 4 130109EC
1005-00-136-2283INTERCHANGEABLE
BOOT,WEATHER SHIELD
103878
6115-00-242-2297INTERCHANGEABLE
GENERATOR SET,GASOLINE ENGINE
103878
4730-00-279-0985INTERCHANGEABLE
PLUG,PIPE
2915-01-483-1322INTERCHANGEABLE
CARBURETOR,FLOAT

Frequently Asked Questions

What is NSN 4730-01-682-4172?

NSN 4730-01-682-4172 is a Plug,pipe, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-682-4172?

NSN 4730-01-682-4172 has 2 cross-referenced part numbers: 103878 (General Motors Corp Electro-Motive Div), 103878 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).

What NSN replaces 4730-01-682-4172?

There are 6 known substitutes for 4730-01-682-4172: 4730-00-044-4577, 4730-00-089-2515, 1005-00-136-2283 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103878?

Key specifications for 103878: Thread Direction: RIGHT-HAND EXTERNAL; Nominal Thread Size: 0.25 INCHES EXTERNAL IN; Part Name Assigned by Controlling Agency: SQUARE HEAD PUPE PLUG; Drive End Style: RAISED SQUARE. 7 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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