PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-04395-0Ring,guide

Spence Engineering Co Inc Dba Nicholson Steam Trap · NSN 4820-01-050-3508 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-050-3508 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-050-3508. Primary manufacturer part number: 4-04395-0.
Features
  • Ring,guide — FSC 4820
  • General Characteristics Item Description: NICKEL COPPER ALLOY; QQ-N-281,CLASS B; 0.623 IN. ID; 0.687 IN. LG; 1/8-20 NEF THD; EXTERNALLY THD;TWO SLOTS ON THD END IN
  • 3 verified cross-references
  • Primary manufacturer: Spence Engineering Co Inc Dba Nicholson Steam Trap
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Ring,guide, cataloged under National Stock Number 4820-01-050-3508, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spence Engineering Co Inc Dba Nicholson Steam Trap. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-01-050-3508
Primary Part Number4-04395-0
Item NameRing,guide
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpence Engineering Co Inc Dba Nicholson Steam Trap
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER ALLOY; QQ-N-281,CLASS B; 0.623 IN. ID; 0.687 IN. LG; 1/8-20 NEF THD; EXTERNALLY THD;TWO SLOTS ON THD END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-005-961323A INTERCHANGEABLE
Connector,receptacle,electrical
Lpa Industries Ltd
6810-00-112-6000 INTERCHANGEABLE
Carbon Disulfide
5905-00-272-73291 3-4Z219TVIT3500HM INTERCHANGEABLE
Resistor,fixed,wire Wound
Ward Leonard Ct Llc
5970-00-434-6195 INTERCHANGEABLE
Insulator,disk
6105-00-439-93274352 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
5998-00-453-5243 INTERCHANGEABLE
Electronic Components Assembly
6145-00-824-5910 INTERCHANGEABLE
Cable,power,electrical
6625-00-855-151304352 INTERCHANGEABLE
Ammeter
Simpson Electric Company, Inc.
5945-00-933-6131 INTERCHANGEABLE
Relay Assembly
4820-01-050-16314-00746-0 INTERCHANGEABLE
Body,valve
Spence Engineering Co Inc Dba Nicholson Steam Trap
Cross-Reference Index
Part NumberManufacturer
4352 Spence Engineering Co Inc Dba Nicholson Steam Trap (USA)
9906-A Spence Engineering Co Inc Dba Nicholson Steam Trap (USA)
4-04395-0 PRIMARY Spence Engineering Co Inc Dba Nicholson Steam Trap (USA)
Related Parts
5935-00-005-9613INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
23A
6810-00-112-6000INTERCHANGEABLE
CARBON DISULFIDE
5905-00-272-7329INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
1 3-4Z219TVIT3500HM
5970-00-434-6195INTERCHANGEABLE
INSULATOR,DISK
6105-00-439-9327INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
4352
5998-00-453-5243INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
6145-00-824-5910INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
6625-00-855-1513INTERCHANGEABLE
AMMETER
04352
5945-00-933-6131INTERCHANGEABLE
RELAY ASSEMBLY
4820-01-050-1631INTERCHANGEABLE
BODY,VALVE
4-00746-0
4820-01-050-1660INTERCHANGEABLE
STEM,FLUID VALVE
4-05328-0
6625-01-110-5803INTERCHANGEABLE
INDUCTOR
435-2

Frequently Asked Questions

What is NSN 4820-01-050-3508?

NSN 4820-01-050-3508 is a Ring,guide, manufactured by Spence Engineering Co Inc Dba Nicholson Steam Trap, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-050-3508?

NSN 4820-01-050-3508 has 3 cross-referenced part numbers: 4352 (Spence Engineering Co Inc Dba Nicholson Steam Trap), 9906-A (Spence Engineering Co Inc Dba Nicholson Steam Trap), 4-04395-0 (Spence Engineering Co Inc Dba Nicholson Steam Trap).

What NSN replaces 4820-01-050-3508?

There are 12 known substitutes for 4820-01-050-3508: 5935-00-005-9613, 6810-00-112-6000, 5905-00-272-7329 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-04395-0?

Key specifications for 4-04395-0: General Characteristics Item Description: NICKEL COPPER ALLOY; QQ-N-281,CLASS B; 0.623 IN. ID; 0.687 IN. LG; 1/8-20 NEF THD; EXTERNALLY THD;TWO SLOTS ON THD END IN. 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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