PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

72775Seal Ring,metal

Komatsu America Corporation · NSN 5330-00-439-8094 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-439-8094 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-439-8094. Primary manufacturer part number: 72775.
Features
  • Seal Ring,metal — FSC 5330
  • Joint Style: INTERLOCKING JOINT
  • Outside Diameter: 3.125 INCHES MINIMUM AND 3.126 INCHES MAXIMUM IN
  • Material: IRON OVERALL
  • Ring Style: EXPANDING CONCENTRIC
  • Radial Wall Thickness: 0.1310 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • Metallic Hardness Rating: 98.0 MINIMUM ROCKWELL B AND 106.0 MAXIMUM ROCKWELL B
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Iron Overall construction
General Description

The Seal Ring,metal, cataloged under National Stock Number 5330-00-439-8094, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Komatsu America Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 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
NSN5330-00-439-8094
Primary Part Number72775
Item NameSeal Ring,metal
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerKomatsu America Corporation
StatusACTIVE
Joint StyleINTERLOCKING JOINT
Outside Diameter3.125 INCHES MINIMUM AND 3.126 INCHES MAXIMUM IN
MaterialIRON OVERALL
Ring StyleEXPANDING CONCENTRIC
Radial Wall Thickness0.1310 INCHES MINIMUM AND 0.1410 INCHES MAXIMUM IN
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Metallic Hardness Rating98.0 MINIMUM ROCKWELL B AND 106.0 MAXIMUM ROCKWELL B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6240-00-119-418264AVIATI0NRED INTERCHANGEABLE
Lamp,incandescent
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
4820-00-133-9952D72775 INTERCHANGEABLE
Slide,directional Control Linear
Cnh Industrial America Llc Dba Cnh America
3110-00-155-6686 INTERCHANGEABLE
Bearing,ball,annular
4820-00-334-1997400847PC1 INTERCHANGEABLE
Valve,safety Relief
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3655-00-394-7804250088 INTERCHANGEABLE
Plunger
Union Carbide Corp Sub of Dow Co the
5850-00-432-3749A72775 INTERCHANGEABLE
Arm Asy
Ballantyne of Omaha Inc.
3110-00-554-3232204S INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5305-01-145-7520AES14U164312UG6A11 INTERCHANGEABLE
Screw,cap,socket Head
The American Society of Mechanical Engineers
5305-01-145-752290507 INTERCHANGEABLE
Screw,cap,socket Head
L3 Technologies, Inc. Div L3 Keo
3040-01-190-9727237242 INTERCHANGEABLE
Ring,piston
Amz Alabama Inc.
Cross-Reference Index
Part NumberManufacturer
6903047 Trojan Industries Inc (USA)
221653 Clark Equipment Co Transmission Div (USA)
2039292 Eaton Corp Forestry and Construction Equipment Div Batavia Plant (USA)
250088 Dana Off Highway Products, Llc (USA)
221653 Clark Equipment Co (USA)
H72775 Komatsu America Corporation (USA)
237242 Dana Off Highway Products, Llc (USA)
72775 PRIMARY Komatsu America Corporation (USA)
90507 Muskegon Piston Ring Co Muskegon Products Div (USA)
221653 Vme Americas Inc Sub of Vme Group N V (USA)
D-72775 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
6240-00-119-4182INTERCHANGEABLE
LAMP,INCANDESCENT
64AVIATI0NRED
4820-00-133-9952INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
D72775
3110-00-155-6686INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-00-334-1997INTERCHANGEABLE
VALVE,SAFETY RELIEF
400847PC1
3655-00-394-7804INTERCHANGEABLE
PLUNGER
250088
5850-00-432-3749INTERCHANGEABLE
ARM ASY
A72775
3110-00-554-3232INTERCHANGEABLE
BEARING,BALL,ANNULAR
204S
5305-01-145-7520INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
AES14U164312UG6A11
5305-01-145-7522INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
90507
3040-01-190-9727INTERCHANGEABLE
RING,PISTON
237242
5345-01-278-4416INTERCHANGEABLE
BELT,ABRASIVE
4920-01-297-9738INTERCHANGEABLE
TEST PROGRAM SET
90507

Frequently Asked Questions

What is NSN 5330-00-439-8094?

NSN 5330-00-439-8094 is a Seal Ring,metal, manufactured by Komatsu America Corporation, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-439-8094?

NSN 5330-00-439-8094 has 11 cross-referenced part numbers: 6903047 (Trojan Industries Inc), 221653 (Clark Equipment Co Transmission Div), 2039292 (Eaton Corp Forestry and Construction Equipment Div Batavia Plant), 250088 (Dana Off Highway Products, Llc), 221653 (Clark Equipment Co) and 6 more.

What NSN replaces 5330-00-439-8094?

There are 12 known substitutes for 5330-00-439-8094: 6240-00-119-4182, 4820-00-133-9952, 3110-00-155-6686 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 72775?

Key specifications for 72775: Joint Style: INTERLOCKING JOINT; Outside Diameter: 3.125 INCHES MINIMUM AND 3.126 INCHES MAXIMUM IN; Material: IRON OVERALL; Ring Style: EXPANDING CONCENTRIC. 8 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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