PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1108-03Support,valve Disc

Aqualung Usa, Inc · NSN 4220-00-617-8178 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-00-617-8178 — this item is cataloged by the U.S. Government under National Stock Number 4220-00-617-8178. Primary manufacturer part number: 1108-03.
Features
  • Support,valve Disc — FSC 4220
  • General Characteristics Item Description: MOLDED PLASTIC,0.125 IN. ID OF HUB,0.344 IN. OD OF HUB,6 SLOTS EQUALLY SPACED,1.312 IN. ID,1.437 IN. OD IN
  • 2 verified cross-references
  • Primary manufacturer: Aqualung Usa, Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Support,valve Disc, cataloged under National Stock Number 4220-00-617-8178, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Aqualung Usa, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4220-00-617-8178
Primary Part Number1108-03
Item NameSupport,valve Disc
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerAqualung Usa, Inc
StatusCANCELLED
General Characteristics Item DescriptionMOLDED PLASTIC,0.125 IN. ID OF HUB,0.344 IN. OD OF HUB,6 SLOTS EQUALLY SPACED,1.312 IN. ID,1.437 IN. OD IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5320-00-011-0803212632 INTERCHANGEABLE
Rivet,solid
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
1680-00-948-431211-0803 INTERCHANGEABLE
Gear,actuator
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
Cross-Reference Index
Part NumberManufacturer
1108-03 PRIMARY Aqualung Usa, Inc (USA)
1108-3 Aqualung Usa, Inc (USA)
Related Parts
5320-00-011-0803INTERCHANGEABLE
RIVET,SOLID
212632
1680-00-948-4312INTERCHANGEABLE
GEAR,ACTUATOR
11-0803

Frequently Asked Questions

What is NSN 4220-00-617-8178?

NSN 4220-00-617-8178 is a Support,valve Disc, manufactured by Aqualung Usa, Inc, classified under FSC 4220 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4220-00-617-8178?

NSN 4220-00-617-8178 has 2 cross-referenced part numbers: 1108-03 (Aqualung Usa, Inc), 1108-3 (Aqualung Usa, Inc).

What NSN replaces 4220-00-617-8178?

There are 2 known substitutes for 4220-00-617-8178: 5320-00-011-0803, 1680-00-948-4312. Verify interchangeability with system specifications before substitution.

What are the specifications of 1108-03?

Key specifications for 1108-03: General Characteristics Item Description: MOLDED PLASTIC,0.125 IN. ID OF HUB,0.344 IN. OD OF HUB,6 SLOTS EQUALLY SPACED,1.312 IN. ID,1.437 IN. OD IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4220-00-617-8178 still in active supply?

NSN 4220-00-617-8178 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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