PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3250-4518Spacer,flexible,pipeline

Unaflex Inc. · NSN 4730-00-192-8898 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-192-8898 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-192-8898. Primary manufacturer part number: 3250-4518.
Features
  • Spacer,flexible,pipeline — FSC 4730
  • Flange Height: 2.062 INCHES NOMINAL IN
  • Style Designator: ROUND
  • Thickness: 0.625 INCHES NOMINAL IN
  • Material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR AND PLASTIC POLYESTER AND RUBBER NEOPRENE
  • Outside Diameter: 10.125 INCHES NOMINAL IN
  • Flange Height: 2.062 INCHES NOMINAL IN
  • Body Length: 16.500 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Isobutylene-Isoprene Class Iir and Plastic Polyester and Rubber Neoprene construction
General Description

The Spacer,flexible,pipeline, cataloged under National Stock Number 4730-00-192-8898, 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 Unaflex Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-192-8898
Primary Part Number3250-4518
Item NameSpacer,flexible,pipeline
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerUnaflex Inc.
StatusACTIVE
Flange Height2.062 INCHES NOMINAL IN
Style DesignatorROUND
Thickness0.625 INCHES NOMINAL IN
MaterialRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR AND PLASTIC POLYESTER AND RUBBER NEOPRENE
Outside Diameter10.125 INCHES NOMINAL IN
Flange Height2.062 INCHES NOMINAL IN
Body Length16.500 INCHES NOMINAL IN
Thickness0.625 INCHES NOMINAL IN
Inside Diameter6.000 INCHES NOMINAL IN
Inside Diameter6.000 INCHES NOMINAL IN
MaterialRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR AND PLASTIC POLYESTER AND RUBBER NEOPRENE
Style DesignatorROUND
Fabrication MethodMOLDED
Flange Thickness0.750 INCHES NOMINAL IN
Outside Diameter10.125 INCHES NOMINAL IN
Body Length16.500 INCHES NOMINAL IN
Flange Thickness0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-00-192-88961-15-518 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-88991-15-824 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89002-15-2512 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89022-15-315 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89042-15-415 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-192-89052-15-518 INTERCHANGEABLE
Spacer,flexible,pipeline
La Favorite Industries Inc.
4730-00-401-37513111-7012-11-70 INTERCHANGEABLE
Spacer,flexible,pipeline
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
4720-01-028-17911-15-212 INTERCHANGEABLE
Hose Assembly,nonmetallic
La Favorite Industries Inc.
2915-01-189-6080215618 INTERCHANGEABLE
Inducer
Eaton Corp Dba Eaton Aerospace Jackson
2040-01-219-53602156-18 INTERCHANGEABLE
Door,metal,marine Structural
Huntington Ingalls Inc Div Newport News Shipbuilding
Cross-Reference Index
Part NumberManufacturer
CS4730-0130 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
LR-1636 La Favorite Industries Inc. (USA)
3250-4518 PRIMARY Unaflex Inc. (USA)
FP-075188 Flow-Flex Engineering Co Div of Dearborn Rubber Corp (USA)
2-15-618 PRIMARY La Favorite Industries Inc. (USA)
3212-0618-11-06 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
75-0618-32FP Flow-Flex Engineering Co Div of Dearborn Rubber Corp (USA)
CS4730-0130 6X18 CONDITION 2 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
Related Parts
4730-00-192-8896INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
1-15-518
4730-00-192-8899INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
1-15-824
4730-00-192-8900INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-2512
4730-00-192-8902INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-315
4730-00-192-8904INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-415
4730-00-192-8905INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
2-15-518
4730-00-401-3751INTERCHANGEABLE
SPACER,FLEXIBLE,PIPELINE
3111-7012-11-70
4720-01-028-1791INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
1-15-212
2915-01-189-6080INTERCHANGEABLE
INDUCER
215618
2040-01-219-5360INTERCHANGEABLE
DOOR,METAL,MARINE STRUCTURAL
2156-18

Frequently Asked Questions

What is NSN 4730-00-192-8898?

NSN 4730-00-192-8898 is a Spacer,flexible,pipeline, manufactured by Unaflex Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-192-8898?

NSN 4730-00-192-8898 has 8 cross-referenced part numbers: CS4730-0130 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), LR-1636 (La Favorite Industries Inc.), 3250-4518 (Unaflex Inc.), FP-075188 (Flow-Flex Engineering Co Div of Dearborn Rubber Corp), 2-15-618 (La Favorite Industries Inc.) and 3 more.

What NSN replaces 4730-00-192-8898?

There are 10 known substitutes for 4730-00-192-8898: 4730-00-192-8896, 4730-00-192-8899, 4730-00-192-8900 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3250-4518?

Key specifications for 3250-4518: Flange Height: 2.062 INCHES NOMINAL IN; Special Features: FLANGE HAS 12 0.688 IN. DIA HOLES ON A 8.875 IN. IN. BOLT CIRCLE DIA AND FURNISHED WITH 8 180 DEG SEGMENTED RETAINING RINGS IN; Style Designator: ROUND; Thickness: 0.625 INCHES NOMINAL IN. 19 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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