PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8201-20O-Ring

Aqualung Usa, Inc · NSN 5331-01-176-7915 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-176-7915 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-176-7915. Primary manufacturer part number: 8201-20.
Features
  • O-Ring — FSC 5331
  • 6 verified cross-references
  • Primary manufacturer: Aqualung Usa, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-176-7915, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Aqualung Usa, Inc. This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersZf Industrieantriebe Witten Gmbh (CAGE D9182); U S Divers Co Shamrock Rubber Div (CAGE 31666); Aqualung Usa, Inc (CAGE 94120)
Technical Specifications
ParameterValue
NSN5331-01-176-7915
Primary Part Number8201-20
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAqualung Usa, Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1345-00-028-509282-0-112 INTERCHANGEABLE
Mine,antipersonnel,practice
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament
1375-00-028-5235 INTERCHANGEABLE
Charge,demolition
1375-00-028-5237 INTERCHANGEABLE
Charge,demolition
4820-00-402-9482820-1 1-2 INTERCHANGEABLE
Valve,float
Itt Fluid Technology Corp Itt Mcdonnell and Miller
1375-00-529-7698E3070230 INTERCHANGEABLE
Charge,demolition
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-00-776-7031820214P INTERCHANGEABLE
O-Ring
Aqualung Usa, Inc
5331-00-951-1890 INTERCHANGEABLE
O-Ring
2530-01-062-3831820214 INTERCHANGEABLE
Brake Shoe
Dana Commercial Vehicle Products, Llc
5360-01-071-4284820112 INTERCHANGEABLE
Spring,helical,compression
Bae Systems Information and Electronic Systems Integration Inc.
5340-01-137-4192820-1 1/2 INTERCHANGEABLE
Clip,end,strap
American Cord & Webbing Co Inc Div American Cord and Webbing
Cross-Reference Index
Part NumberManufacturer
8201-12 Zf Industrieantriebe Witten Gmbh (DEU)
8201-20 Zf Industrieantriebe Witten Gmbh (DEU)
8201-20 U S Divers Co Shamrock Rubber Div (USA)
0518-21 Zf Industrieantriebe Witten Gmbh (DEU)
8201-20 PRIMARY Aqualung Usa, Inc (USA)
8202-14 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
1345-00-028-5092INTERCHANGEABLE
MINE,ANTIPERSONNEL,PRACTICE
82-0-112
1375-00-028-5235INTERCHANGEABLE
CHARGE,DEMOLITION
1375-00-028-5237INTERCHANGEABLE
CHARGE,DEMOLITION
4820-00-402-9482INTERCHANGEABLE
VALVE,FLOAT
820-1 1-2
1375-00-529-7698INTERCHANGEABLE
CHARGE,DEMOLITION
E3070230
5331-00-776-7031INTERCHANGEABLE
O-RING
820214P
5331-00-951-1890INTERCHANGEABLE
O-RING
2530-01-062-3831INTERCHANGEABLE
BRAKE SHOE
820214
5360-01-071-4284INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
820112
5340-01-137-4192INTERCHANGEABLE
CLIP,END,STRAP
820-1 1/2
5331-01-250-3310INTERCHANGEABLE
O-RING
4220-01-305-8268INTERCHANGEABLE
DIP TUBE,DIVING
0518-21

Frequently Asked Questions

What is NSN 5331-01-176-7915?

NSN 5331-01-176-7915 is a O-Ring, manufactured by Aqualung Usa, Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-176-7915?

NSN 5331-01-176-7915 has 6 cross-referenced part numbers: 8201-12 (Zf Industrieantriebe Witten Gmbh), 8201-20 (Zf Industrieantriebe Witten Gmbh), 8201-20 (U S Divers Co Shamrock Rubber Div), 0518-21 (Zf Industrieantriebe Witten Gmbh), 8201-20 (Aqualung Usa, Inc) and 1 more.

What NSN replaces 5331-01-176-7915?

There are 12 known substitutes for 5331-01-176-7915: 1345-00-028-5092, 1375-00-028-5235, 1375-00-028-5237 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5331-01-176-7915 still in active supply?

NSN 5331-01-176-7915 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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