PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D8952BExpansion Joint,pipe

Croll-Reynolds Engineering Co. Inc. · NSN 4730-00-529-2640 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-529-2640 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-529-2640. Primary manufacturer part number: D8952B.
Features
  • Expansion Joint,pipe — FSC 4730
  • Guide Type: EXTERNAL
  • Working Pressure Rating: 50.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Bolt Hole Diameter: 0.813 INCHES NOMINAL IN
  • Nominal Pipe Size Designation: 10.000 INCHES IN
  • Traverse Maximum Length: 1.000 INCHES IN
  • Equalization Characteristic: NONEQUALIZING
  • Joint Type: DOUBLE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Expansion Joint,pipe, cataloged under National Stock Number 4730-00-529-2640, 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 Croll-Reynolds Engineering Co. Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-529-2640
Primary Part NumberD8952B
Item NameExpansion Joint,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCroll-Reynolds Engineering Co. Inc.
StatusACTIVE
Guide TypeEXTERNAL
Working Pressure Rating50.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Bolt Hole Diameter0.813 INCHES NOMINAL IN
Nominal Pipe Size Designation10.000 INCHES IN
Traverse Maximum Length1.000 INCHES IN
Equalization CharacteristicNONEQUALIZING
Joint TypeDOUBLE
Design TypeCORRUGATED ELEMENT
End Connection TypeFLANGED
Nondefinitive Spec/std Data3 TYPE AND 2 CLASS
Bolt Hole Quantity15
Bolt Circle Diameter13.438 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-139-3885 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-529-2639D8953B INTERCHANGEABLE
Expansion Joint,pipe
Croll-Reynolds Engineering Co. Inc.
4730-01-229-0884 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-229-0886 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-229-0887 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-229-0888 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-229-0889 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-229-0890 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-229-0891 INTERCHANGEABLE
Expansion Joint,pipe
4730-01-243-9682 INTERCHANGEABLE
Expansion Joint,pipe
Cross-Reference Index
Part NumberManufacturer
MIL-E-17813 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-17813 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
D8952B PRIMARY Croll-Reynolds Engineering Co. Inc. (USA)
Related Parts
4730-00-139-3885INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-529-2639INTERCHANGEABLE
EXPANSION JOINT,PIPE
D8953B
4730-01-229-0884INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-229-0886INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-229-0887INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-229-0888INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-229-0889INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-229-0890INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-229-0891INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-243-9682INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-243-9684INTERCHANGEABLE
EXPANSION JOINT,PIPE
4730-01-243-9686INTERCHANGEABLE
EXPANSION JOINT,PIPE

Frequently Asked Questions

What is NSN 4730-00-529-2640?

NSN 4730-00-529-2640 is a Expansion Joint,pipe, manufactured by Croll-Reynolds Engineering Co. Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-529-2640?

NSN 4730-00-529-2640 has 3 cross-referenced part numbers: MIL-E-17813 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-17813 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), D8952B (Croll-Reynolds Engineering Co. Inc.).

What NSN replaces 4730-00-529-2640?

There are 12 known substitutes for 4730-00-529-2640: 4730-00-139-3885, 4730-00-529-2639, 4730-01-229-0884 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of D8952B?

Key specifications for D8952B: Guide Type: EXTERNAL; Working Pressure Rating: 50.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Bolt Hole Diameter: 0.813 INCHES NOMINAL IN; Nominal Pipe Size Designation: 10.000 INCHES IN. 13 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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