PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C20637Coupling,hose

Hydrasearch Company, Llc · NSN 4730-01-517-1513 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-517-1513 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-517-1513. Primary manufacturer part number: C20637.
Features
  • Coupling,hose — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Hydrasearch Company, Llc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Coupling,hose, cataloged under National Stock Number 4730-01-517-1513, 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 Hydrasearch Company, Llc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCoupling,hose
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersHydrasearch Company, Llc (CAGE 32142)
Technical Specifications
ParameterValue
NSN4730-01-517-1513
Primary Part NumberC20637
Item NameCoupling,hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHydrasearch Company, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5133-00-266-9247 INTERCHANGEABLE
Drill,twist
5330-00-328-4510 INTERCHANGEABLE
Gasket
5325-00-631-529220637 INTERCHANGEABLE
Ring,retaining
Kaydon Ring & Seal Inc Dba Skf Precision Technologies
5342-00-777-764110-30191-23 INTERCHANGEABLE
Latch Assembly,cowl
The Boeing Company Div Legacy Wichita
1005-00-867-534511644080 INTERCHANGEABLE
Lining,clutch and B
U S Army Tank Automotive Command Amsta-Im-Mm
1660-00-942-856020637 INTERCHANGEABLE
Fitting,hose
Avox Systems Inc Dba Avox Systems Inc
5970-01-010-8903 INTERCHANGEABLE
Insulator,washer
5306-01-099-295120637 INTERCHANGEABLE
Bolt
Midwest Gear & Tool, Inc.
5950-01-269-8240 INTERCHANGEABLE
Transformer,current
5975-01-298-3729206-37 INTERCHANGEABLE
Conduit Assembly,flexible
Dcx-Chol Enterprises, Inc.
Cross-Reference Index
Part NumberManufacturer
20637 Hydrasearch Company, Llc (USA)
C20637 PRIMARY Hydrasearch Company, Llc (USA)
Related Parts
5133-00-266-9247INTERCHANGEABLE
DRILL,TWIST
5330-00-328-4510INTERCHANGEABLE
GASKET
5325-00-631-5292INTERCHANGEABLE
RING,RETAINING
20637
5342-00-777-7641INTERCHANGEABLE
LATCH ASSEMBLY,COWL
10-30191-23
1005-00-867-5345INTERCHANGEABLE
LINING,CLUTCH AND B
11644080
1660-00-942-8560INTERCHANGEABLE
FITTING,HOSE
20637
5970-01-010-8903INTERCHANGEABLE
INSULATOR,WASHER
5306-01-099-2951INTERCHANGEABLE
BOLT
20637
5950-01-269-8240INTERCHANGEABLE
TRANSFORMER,CURRENT
5975-01-298-3729INTERCHANGEABLE
CONDUIT ASSEMBLY,FLEXIBLE
206-37

Frequently Asked Questions

What is NSN 4730-01-517-1513?

NSN 4730-01-517-1513 is a Coupling,hose, manufactured by Hydrasearch Company, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-517-1513?

NSN 4730-01-517-1513 has 2 cross-referenced part numbers: 20637 (Hydrasearch Company, Llc), C20637 (Hydrasearch Company, Llc).

What NSN replaces 4730-01-517-1513?

There are 10 known substitutes for 4730-01-517-1513: 5133-00-266-9247, 5330-00-328-4510, 5325-00-631-5292 and 7 more. Verify interchangeability with system specifications before substitution.

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