PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AF934-176O-Ring

Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters · NSN 5331-00-291-3275 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-291-3275 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-291-3275. Primary manufacturer part number: AF934-176.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 6.964 INCHES MINIMUM AND 7.060 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Center Hole Diameter: 6.711 INCHES MINIMUM AND 6.757 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 41 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-291-3275, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 41 commercial cross-references from 30 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-291-3275
Primary Part NumberAF934-176
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters
StatusCANCELLED
Outside Diameter6.964 INCHES MINIMUM AND 7.060 INCHES MAXIMUM IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Center Hole Diameter6.711 INCHES MINIMUM AND 6.757 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-385-9429HC155KANDHC162KX5 INTERCHANGEABLE
Valve Assembly
Siemens Energy, Inc.
5905-00-409-1642 INTERCHANGEABLE
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1610-00-588-85314A2-1 INTERCHANGEABLE
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6625-00-594-0569MMI8248 INTERCHANGEABLE
Meter,audio Level
Custom Metering Company Inc
2520-00-734-907611832 INTERCHANGEABLE
Disk,clutch,vehicular
Sachs-Boge of America
5305-00-916-668611261 INTERCHANGEABLE
Setscrew
Naval Inventory Control Point Mechanicsburg
5950-00-918-40131126-1 INTERCHANGEABLE
Transformer,power
Drs Signal Solutions, Inc.
5120-00-937-783410951484 INTERCHANGEABLE
Adapter,torque Wrench
U S Army Tank Automotive Command Amsta-Im-Mm
5330-01-145-0732 INTERCHANGEABLE
Gasket
5950-01-176-486811261 INTERCHANGEABLE
Transformer,power
G.s. Blodgett, Llc Div Blodgett
Cross-Reference Index
Part NumberManufacturer
AF934-176 Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
GS570EM261 Northrop Grumman Systems Corporation (USA)
4A21 Zf Industrieantriebe Witten Gmbh (DEU)
261-C-69 Ap Parts Co Industrial Sales Div (USA)
1793-261 Parker-Hannifin Corporation Div O-Ring Division (USA)
N0602 2-261 Parker-Hannifin Corp Div O-Ring Division (USA)
261-C-69 Federal-Mogul Corp Chassis Products Div (USA)
MS29513-261 Society of Automotive Engineers Inc (USA)
2-354-N674-70 Zf Industrieantriebe Witten Gmbh (DEU)
5331PL1372960 Jednolity Indeks Materialowy - Uniform Material Index (POL)
E3355 PC NO. 42 5IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
MILP5315GRADEAA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SR-822A-60-261 Stillman Seal Corporation Div Stillman Seal Corperation (USA)
11-261 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
MS29513-261 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILP5315 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10V60-141-261 Houghton International Inc. (USA)
7866-261 Parker Hannifin Corporation Div O-Ring Division (USA)
C-69-261 Federal-Mogul Corp Government Sales Dept (USA)
457-60-261 Parco, Llc (USA)
Related Parts
4820-00-385-9429INTERCHANGEABLE
VALVE ASSEMBLY
HC155KANDHC162KX5
5905-00-409-1642INTERCHANGEABLE
RESISTOR ASSEMBLY
1610-00-588-8531INTERCHANGEABLE
GOVERNOR ASSEMBLY,P
4A2-1
6625-00-594-0569INTERCHANGEABLE
METER,AUDIO LEVEL
MMI8248
2520-00-734-9076INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
11832
5305-00-916-6686INTERCHANGEABLE
SETSCREW
11261
5950-00-918-4013INTERCHANGEABLE
TRANSFORMER,POWER
1126-1
5120-00-937-7834INTERCHANGEABLE
ADAPTER,TORQUE WRENCH
10951484
5330-01-145-0732INTERCHANGEABLE
GASKET
5950-01-176-4868INTERCHANGEABLE
TRANSFORMER,POWER
11261
5305-01-214-7561INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5325-01-292-7218INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5331-00-291-3275?

NSN 5331-00-291-3275 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-291-3275?

NSN 5331-00-291-3275 has 41 cross-referenced part numbers: AF934-176 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), GS570EM261 (Northrop Grumman Systems Corporation), 4A21 (Zf Industrieantriebe Witten Gmbh), 261-C-69 (Ap Parts Co Industrial Sales Div), 1793-261 (Parker-Hannifin Corporation Div O-Ring Division) and 36 more.

What NSN replaces 5331-00-291-3275?

There are 12 known substitutes for 5331-00-291-3275: 4820-00-385-9429, 5905-00-409-1642, 1610-00-588-8531 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AF934-176?

Key specifications for AF934-176: Outside Diameter: 6.964 INCHES MINIMUM AND 7.060 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 6.711 INCHES MINIMUM AND 6.757 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-291-3275 still in active supply?

NSN 5331-00-291-3275 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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