PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8520-3Coupling,tube

Textron Ground Support Equipment Inc. Div Textron Gse · NSN 4730-01-496-6678 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-496-6678 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-496-6678. Primary manufacturer part number: 8520-3.
Features
  • Coupling,tube — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Textron Ground Support Equipment Inc. Div Textron Gse
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Coupling,tube, cataloged under National Stock Number 4730-01-496-6678, 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 Textron Ground Support Equipment Inc. Div Textron Gse. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-496-6678
Primary Part Number8520-3
Item NameCoupling,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTextron Ground Support Equipment Inc. Div Textron Gse
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5998-00-102-6935 INTERCHANGEABLE
Circuit Card Assembly
5120-00-540-4273HSF-20H INTERCHANGEABLE
Face,hammer,inserted
Williams J H Industrial Products Inc
4820-00-720-4488 INTERCHANGEABLE
Cock,drain
6145-00-767-34278520 0031000 INTERCHANGEABLE
Wire,electrical
Belden Wire and Cable Co Wire and Cable Office
5310-01-730-9066NAS1149G0890B INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-730-9095NAS1149G08125B INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
8520-3 Textron Ground Support Equipment Inc. Div Textron Gse (USA)
8520-3 Stewart & Stevenson Services Inc Dba Stewart &stevenson Tug or S&s Tug Div Tug Manufacturing (USA)
Related Parts
5998-00-102-6935INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5120-00-540-4273INTERCHANGEABLE
FACE,HAMMER,INSERTED
HSF-20H
4820-00-720-4488INTERCHANGEABLE
COCK,DRAIN
6145-00-767-3427INTERCHANGEABLE
WIRE,ELECTRICAL
8520 0031000
5310-01-730-9066INTERCHANGEABLE
WASHER,FLAT
NAS1149G0890B
5310-01-730-9095INTERCHANGEABLE
WASHER,FLAT
NAS1149G08125B

Frequently Asked Questions

What is NSN 4730-01-496-6678?

NSN 4730-01-496-6678 is a Coupling,tube, manufactured by Textron Ground Support Equipment Inc. Div Textron Gse, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-496-6678?

NSN 4730-01-496-6678 has 2 cross-referenced part numbers: 8520-3 (Textron Ground Support Equipment Inc. Div Textron Gse), 8520-3 (Stewart & Stevenson Services Inc Dba Stewart &stevenson Tug or S&s Tug Div Tug Manufacturing).

What NSN replaces 4730-01-496-6678?

There are 6 known substitutes for 4730-01-496-6678: 5998-00-102-6935, 5120-00-540-4273, 4820-00-720-4488 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8520-3?

Key specifications for 8520-3: End Item Identification: STAND-ALONE GROUND SUPPORT AIR CONDITIONER, MODEL MK-12. 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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