PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18448Flange,pipe,blind

Leybold Usa Inc. · NSN 4730-01-380-1149 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-380-1149 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-380-1149. Primary manufacturer part number: 18448.
Features
  • Flange,pipe,blind — FSC 4730
  • Groove Depth: 0.098 INCHES NOMINAL IN
  • Flange Section Style: RAISED FACE WELDING (BLIND)
  • Face Seating Surface Condition: MACHINED
  • Style Designator: ROUND, NO BOLT HOLES
  • Nominal Pipe Size for Which Designed: 1.625 INCHES IN
  • Material: ALUMINUM
  • Groove Width: 0.197 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum construction
General Description

The Flange,pipe,blind, cataloged under National Stock Number 4730-01-380-1149, 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 Leybold Usa Inc.. Government technical data includes 10 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-380-1149
Primary Part Number18448
Item NameFlange,pipe,blind
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLeybold Usa Inc.
StatusACTIVE
Groove Depth0.098 INCHES NOMINAL IN
Flange Section StyleRAISED FACE WELDING (BLIND)
Face Seating Surface ConditionMACHINED
Style DesignatorROUND, NO BOLT HOLES
Nominal Pipe Size for Which Designed1.625 INCHES IN
MaterialALUMINUM
Groove Width0.197 INCHES NOMINAL IN
Flange Diameter2.160 INCHES NOMINAL IN
Groove Pitch Diameter1.425 INCHES NOMINAL IN
Thickness0.197 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-307-415418-448 INTERCHANGEABLE
Transformer,power
Leach International Corp Div Leach International Corporation
4730-00-720-50025228623-1 INTERCHANGEABLE
Reducer,pipe
U S Army Tank Automotive Command Amsta-Im-Mm
5365-01-284-301118448 INTERCHANGEABLE
Spacer,sleeve
Cooper Crouse-Hinds Llc
3120-01-642-790018448 INTERCHANGEABLE
Bearing,washer,thrust
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
18448 PRIMARY Leybold Usa Inc. (USA)
18448 Leybold Vacuum Products Inc (USA)
Related Parts
5950-00-307-4154INTERCHANGEABLE
TRANSFORMER,POWER
18-448
4730-00-720-5002INTERCHANGEABLE
REDUCER,PIPE
5228623-1
5365-01-284-3011INTERCHANGEABLE
SPACER,SLEEVE
18448
3120-01-642-7900INTERCHANGEABLE
BEARING,WASHER,THRUST
18448

Frequently Asked Questions

What is NSN 4730-01-380-1149?

NSN 4730-01-380-1149 is a Flange,pipe,blind, manufactured by Leybold Usa Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-380-1149?

NSN 4730-01-380-1149 has 2 cross-referenced part numbers: 18448 (Leybold Usa Inc.), 18448 (Leybold Vacuum Products Inc).

What NSN replaces 4730-01-380-1149?

There are 4 known substitutes for 4730-01-380-1149: 5950-00-307-4154, 4730-00-720-5002, 5365-01-284-3011 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18448?

Key specifications for 18448: Groove Depth: 0.098 INCHES NOMINAL IN; Flange Section Style: RAISED FACE WELDING (BLIND); Face Seating Surface Condition: MACHINED; Style Designator: ROUND, NO BOLT HOLES. 10 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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