PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21310Expansion Joint,pipe

Hyspan Precision Products, Inc. · NSN 4730-00-537-9301 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-537-9301 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-537-9301. Primary manufacturer part number: 21310.
Features
  • Expansion Joint,pipe — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Hyspan Precision Products, Inc.
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Expansion Joint,pipe, cataloged under National Stock Number 4730-00-537-9301, 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.. This item has 2 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.

Catalog Facts
Item NameExpansion Joint,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersHyspan Precision Products, Inc. (CAGE 70510); Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (CAGE 30009)
Technical Specifications
ParameterValue
NSN4730-00-537-9301
Primary Part Number21310
Item NameExpansion Joint,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHyspan Precision Products, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-142421310 INTERCHANGEABLE
Bearing,roller,self-Aligning
Skf Usa Inc.
2805-00-356-130121310 INTERCHANGEABLE
Body,breather Valve
Briggs and Stratton Corp
4720-00-451-2727213-10 INTERCHANGEABLE
Hose,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5945-00-476-1194860-204 INTERCHANGEABLE
Relay
Ranco Inc Ranco Controls Div
1005-00-499-438721310 INTERCHANGEABLE
Yoke Assembly,booster
Safran Power Usa Llc
6145-00-553-7822 INTERCHANGEABLE
Cable,radio Frequency
5331-00-599-242721310 INTERCHANGEABLE
O-Ring
L3harris Technologies, Inc. Div Space and Airborne Systems
5999-00-636-817421-310 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5355-00-914-653321310 INTERCHANGEABLE
Dial,scale
Aerosonic Llc
4730-01-348-062921310 INTERCHANGEABLE
Reducer,hose
National Oil Well Dba Iec Baylor
Cross-Reference Index
Part NumberManufacturer
21310 PRIMARY Hyspan Precision Products, Inc. (USA)
21310 Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc (USA)
Related Parts
3110-00-156-1424INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
21310
2805-00-356-1301INTERCHANGEABLE
BODY,BREATHER VALVE
21310
4720-00-451-2727INTERCHANGEABLE
HOSE,NONMETALLIC
213-10
5945-00-476-1194INTERCHANGEABLE
RELAY
860-204
1005-00-499-4387INTERCHANGEABLE
YOKE ASSEMBLY,BOOSTER
21310
6145-00-553-7822INTERCHANGEABLE
CABLE,RADIO FREQUENCY
5331-00-599-2427INTERCHANGEABLE
O-RING
21310
5999-00-636-8174INTERCHANGEABLE
CONTACT,ELECTRICAL
21-310
5355-00-914-6533INTERCHANGEABLE
DIAL,SCALE
21310
4730-01-348-0629INTERCHANGEABLE
REDUCER,HOSE
21310
6060-01-348-5030INTERCHANGEABLE
SPLICE,FIBER OPTIC CONDUCTOR
21300
4810-01-415-6592INTERCHANGEABLE
VALVE ASSEMBLY
21310-001

Frequently Asked Questions

What is NSN 4730-00-537-9301?

NSN 4730-00-537-9301 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 4730-00-537-9301?

NSN 4730-00-537-9301 has 2 cross-referenced part numbers: 21310 (Hyspan Precision Products, Inc.), 21310 (Hyspan Precision Products, Inc. Dba Hyspan Precision Products Inc).

What NSN replaces 4730-00-537-9301?

There are 12 known substitutes for 4730-00-537-9301: 3110-00-156-1424, 2805-00-356-1301, 4720-00-451-2727 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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