PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1012311Expansion Joint,pipe

American Boa Inc · NSN 4730-01-658-0434 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-658-0434 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-658-0434. Primary manufacturer part number: 1012311.
Features
  • Expansion Joint,pipe — FSC 4730
  • 1 verified cross-reference
  • Primary manufacturer: American Boa Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-658-0434, 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 American Boa Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-658-0434
Primary Part Number1012311
Item NameExpansion Joint,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAmerican Boa Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5985-00-087-9927101-000-231 INTERCHANGEABLE
Coupler,antenna
Dare Electronics, Inc.
5360-01-221-0229101231-1 INTERCHANGEABLE
Spring,helical,extension
Bae Systems Land & Armaments L.p.
3020-01-398-57201012311 INTERCHANGEABLE
Gear,bevel
Univex Corporation Div Univex Corportation
Cross-Reference Index
Part NumberManufacturer
1012311 PRIMARY American Boa Inc (USA)
Related Parts
5985-00-087-9927INTERCHANGEABLE
COUPLER,ANTENNA
101-000-231
5360-01-221-0229INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
101231-1
3020-01-398-5720INTERCHANGEABLE
GEAR,BEVEL
1012311

Frequently Asked Questions

What is NSN 4730-01-658-0434?

NSN 4730-01-658-0434 is a Expansion Joint,pipe, manufactured by American Boa Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-658-0434?

NSN 4730-01-658-0434 has 1 cross-referenced part number: 1012311 (American Boa Inc).

What NSN replaces 4730-01-658-0434?

There are 3 known substitutes for 4730-01-658-0434: 5985-00-087-9927, 5360-01-221-0229, 3020-01-398-5720. Verify interchangeability with system specifications before substitution.

What are the specifications of 1012311?

Key specifications for 1012311: Special Features: 32IN EXPANSION JOINT IN. 1 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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