PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-502-1Nut,tube Coupling

Fluid Systems Technologies (es) Pty Ltd · NSN 4730-01-033-8889 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-033-8889 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-033-8889. Primary manufacturer part number: B-502-1.
Features
  • Nut,tube Coupling — FSC 4730
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 2 verified cross-references
  • Primary manufacturer: Fluid Systems Technologies (es) Pty Ltd
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-01-033-8889, 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 Fluid Systems Technologies (es) Pty Ltd. Government technical data includes 2 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-033-8889
Primary Part NumberB-502-1
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFluid Systems Technologies (es) Pty Ltd
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-225-91361160008P1 INTERCHANGEABLE
Connector,plug,electrical
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5120-00-293-3480 INTERCHANGEABLE
Pliers
2940-00-354-0919148244 INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
5905-00-803-6692308-0067-00 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Tektronix, Inc.
5355-00-813-2078MS91528-0D1B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4730-00-825-981774435A INTERCHANGEABLE
Elbow,pipe
Air Products & Chemicals, Inc
5950-00-833-9511X015-1 INTERCHANGEABLE
Transformer,radio Frequency
Communication Coil, Inc. Div -
5340-01-009-0600B5021 INTERCHANGEABLE
Boot,dust and Moisture Seal
Kirkhill, Inc. Dba Kirkhill Inc
3010-01-196-539050-21 INTERCHANGEABLE
Cap,worm Gear
Cone Drive Operations Inc
5315-01-229-2097B5021 INTERCHANGEABLE
Pin,straight,headless
Brand Hydraulics
Cross-Reference Index
Part NumberManufacturer
B-502-1 Fluid Systems Technologies (es) Pty Ltd (AUS)
502-1 Swagelok Co (USA)
Related Parts
5935-00-225-9136INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
1160008P1
5120-00-293-3480INTERCHANGEABLE
PLIERS
2940-00-354-0919INTERCHANGEABLE
FILTER ELEMENT,FLUID
148244
5905-00-803-6692INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
308-0067-00
5355-00-813-2078INTERCHANGEABLE
KNOB
MS91528-0D1B
4730-00-825-9817INTERCHANGEABLE
ELBOW,PIPE
74435A
5950-00-833-9511INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
X015-1
5340-01-009-0600INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
B5021
3010-01-196-5390INTERCHANGEABLE
CAP,WORM GEAR
50-21
5315-01-229-2097INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
B5021
4730-01-361-8156INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
6F64X-S
5340-01-367-2747INTERCHANGEABLE
CLIP,SPRING TENSION
502 DP1 STS

Frequently Asked Questions

What is NSN 4730-01-033-8889?

NSN 4730-01-033-8889 is a Nut,tube Coupling, manufactured by Fluid Systems Technologies (es) Pty Ltd, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-033-8889?

NSN 4730-01-033-8889 has 2 cross-referenced part numbers: B-502-1 (Fluid Systems Technologies (es) Pty Ltd), 502-1 (Swagelok Co).

What NSN replaces 4730-01-033-8889?

There are 12 known substitutes for 4730-01-033-8889: 5935-00-225-9136, 5120-00-293-3480, 2940-00-354-0919 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-502-1?

Key specifications for B-502-1: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY; Special Features: FOR ADDITIONAL DESCRIPTION AND INFORMATION CONCERNING THIS ITEM REFER TO SPCCINST 4440.376,CHAPTER 9.. 3 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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