PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21313Expansion Joint,pipe

Hyspan Precision Products, Inc. · NSN 4730-00-586-3461 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-586-3461 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-586-3461. Primary manufacturer part number: 21313.
Features
  • Expansion Joint,pipe — FSC 4730
  • Bolt Hole Diameter: 1.250 INCHES NOMINAL IN
  • Material: STEEL FLANGE
  • Nominal Pipe Size Designation: 20.000 INCHES IN
  • End Connection Type: FLANGED
  • Working Pressure Rating: 10.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Design Type: CORRUGATED ELEMENT
  • Joint Type: SINGLE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Flange construction
General Description

The Expansion Joint,pipe, cataloged under National Stock Number 4730-00-586-3461, 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 Hyspan Precision Products, Inc.. Government technical data includes 11 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-586-3461
Primary Part Number21313
Item NameExpansion Joint,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHyspan Precision Products, Inc.
StatusACTIVE
Bolt Hole Diameter1.250 INCHES NOMINAL IN
MaterialSTEEL FLANGE
Nominal Pipe Size Designation20.000 INCHES IN
End Connection TypeFLANGED
Working Pressure Rating10.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Design TypeCORRUGATED ELEMENT
Joint TypeSINGLE
Equalization CharacteristicSELF-EQUALIZING
Bolt Hole Quantity20
Bolt Circle Diameter25.000 INCHES NOMINAL IN
Flange Outside Diameter27.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-118-627821313 INTERCHANGEABLE
Bearing,roller,self-Aligning
Fag Bearings Corporation
3120-00-662-8861851070 INTERCHANGEABLE
Bearing,sleeve
Dana Off Highway Products, Llc
5360-00-993-532121313 INTERCHANGEABLE
Spring,helical,compression
Barksdale, Inc
5340-01-086-3479213-13 INTERCHANGEABLE
Plug
Cnh Industrial America Llc Dba Cnh America
3110-01-102-594021313 INTERCHANGEABLE
Plate,retaining,bearing
Maradyne Corporation
4810-01-418-951721313-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5330-01-530-364121-3-13 INTERCHANGEABLE
Retainer,packing
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
21313 PRIMARY Hyspan Precision Products, Inc. (USA)
21313 Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (USA)
Related Parts
3110-00-118-6278INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
21313
3120-00-662-8861INTERCHANGEABLE
BEARING,SLEEVE
851070
5360-00-993-5321INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21313
5340-01-086-3479INTERCHANGEABLE
PLUG
213-13
3110-01-102-5940INTERCHANGEABLE
PLATE,RETAINING,BEARING
21313
4810-01-418-9517INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21313-001
5330-01-530-3641INTERCHANGEABLE
RETAINER,PACKING
21-3-13

Frequently Asked Questions

What is NSN 4730-00-586-3461?

NSN 4730-00-586-3461 is a Expansion Joint,pipe, manufactured by Hyspan Precision Products, Inc., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-586-3461?

NSN 4730-00-586-3461 has 2 cross-referenced part numbers: 21313 (Hyspan Precision Products, Inc.), 21313 (Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc).

What NSN replaces 4730-00-586-3461?

There are 7 known substitutes for 4730-00-586-3461: 3110-00-118-6278, 3120-00-662-8861, 5360-00-993-5321 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21313?

Key specifications for 21313: Bolt Hole Diameter: 1.250 INCHES NOMINAL IN; Material: STEEL FLANGE; Overall Length: 21.750 INCHES NOMINAL IN; Nominal Pipe Size Designation: 20.000 INCHES IN. 12 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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