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Overview
Features & Benefits
Specifications
Technical Information
Shipping Details
Replacement History
Military Standard MS28778-6 O-Ring, Rubber
overstock
Proponent
Part # MS28778-6=15
MS28778-6 is a high-quality tube fitting boss gasket for aerospace hydraulic and fuel systems. It replaces AN6290 gaskets, providing a secure, leak-proof fit for 3/8-inch tube outer diameter with durable 90 Shore A rubber.
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Overview
This precision-engineered black rubber O-ring is designed for high-pressure aircraft engines and hydraulic fittings. It ensures system integrity and simplifies maintenance with standardized sizing and robust construction for long service life.
Features & Benefits
- Fully interchangeable with legacy AN6290 gaskets
- Precise fit for 3/8-inch tube outer diameter
- Meets stringent aerospace standards for flight safety
- High-durometer construction ensures leak-proof seal
- Standardized design simplifies maintenance and compatibility
- Durable rubber material provides long-lasting performance
Specifications
- Series: MS28778
- Inside Diameter: 0.468 in
- Outside Diameter: 0.078 in
- Durometer: 90 Shore A
- Material: Rubber
- Color: Black
- Shelf Life: 5475 days
- Suitable For Use With: Aircraft Engines
- Domestic/Import: Domestic
Technical Information
ATA Number
21,
22,
25,
26,
27,
28,
29,
31,
32,
34,
35,
36,
38,
47,
49,
52,
71,
72,
73,
75,
78,
79
ATA Chapter
Air Conditioning
Auto Flight
Equipment / Furnishings
Fire Protection
Flight Controls
Fuel
Hydraulic Power
Indicating / Recording Systems
Landing Gear
Navigation
Oxygen
Pneumatic
Water / Waste
Nitrogen Generation System
Airborne Auxiliary Power
Doors
Power Plant
Engine Turbine / Turbo Prop Ducted Fan / Unducted Fan
Engine Fuel and Control
Air
Exhaust
Oil
16 moreSee lessATA Group
Airframe Systems
Structure
Power Plant
ATA Section
CONTROL CABIN CONDITIONED AIR DISTRIBUTION SYSTEM
PASSENGER CABIN CONDITIONED AIR DISTRIBUTION SYSTEM
EQUIPMENT COOLING SYSTEM
PRESSURIZATION CONTROL
PRESSURIZATION CONTROL SYSTEM
PRESSURIZATION RELIEF VALVES
AIR CYCLE SYSTEM
TEMPERATURE CONTROL
CONDITIONED AIR TEMPERATURE CONTROL SYSTEM
Autopilot
Rudder & Tab
RUDDER AND RUDDER TRIM CONTROL SYSTEM
STABILIZER TRIM INDICATING SYSTEM
ENGINE FUEL FEED SYSTEM
Main
HYDRAULIC SYSTEMS A AND B
Instrument & Control Panels
PILOTS' OVERHEAD PANELS
Main Gear and Doors
MAIN GEAR
MAIN GEAR SHOCK STRUT DOORS
NOSE LANDING GEAR
Extension and Retraction
LANDING GEAR CONTROL SYSTEM
Wheels and Brakes
Steering
NOSE WHEEL STEERING SYSTEM
Flight Environment
PITOT-STATIC SYSTEM
AIR DATA SYSTEM
Independent Position Determining
General
Crew
Passenger
PASSENGER OXYGEN SYSTEM (GASEOUS)
ENGINE BLEED AIR
POTABLE WATER SYSTEM
WATER SYSTEM PRESSURIZATION
WASTE WATER SYSTEM
TOILET SYSTEM
WASTE TANK QUANTITY INDICATION
Air Supply
WATER TANK PRESSURIZATION
Water / Waste
NGS GENERATION
THERMAL CONTROL SYSTEM
APU POWER PLANT
Passenger/Crew
ENGINE COWLING
ENGINE VENTS AND DRAINS
Power Plant
Accessory Drives
FUEL DISTRIBUTION SYSTEM
TRANSIENT BLEED VALVE
Thrust Reverser
49 moreSee lessFAA Approval Code
STD
Condition
New
CAGE Code
59789
Country of Origin
United States
Harmonized Tariff Schedule Code
4016930000
Storage Required
No
Lead Time (Days)
30
Shelf Life
Yes
Total Shelf Life (Days)
5475
Forecasted
Yes
Dimensions (L x W x H)
4 x 4 x 0.07 Inch
Package Weight
0.01 LB
Aircraft Makes
Aircraft Models
PA-60-600
BBJ 737-800
G58
737-300
737NG-800BCF
E90
737-600
747-100
757
Q402F
737NG-600
737-7
737-300SF
PA-60-602P
727
777-200LR
A36TC
B200GT
767-200
CRJ-440
787-9
737NG-900
C90GT
C90-1
CRJ-200
767-300
C90
CRJ-700ER
350I
747-300
B200CT
B55
PA-31-T2
737-800
B200C
767-200EM
1900
407
1000
737-900
B200CGT
C90SE
CRJ-900ER
DC9
757-300EM
B200
BBJ 747-8
402QPF
767-300EREM
350C
747-200
800XP
PA-31-T
900XP
CRJ-700
MD90
737NG-700C
737 MAX 8
737-400SF
402NG
767-300F
737MAX
757-200PF
737-8
CRJ-701
Citation Bravo
767-400ER
737-300QC
737-400
757-200EM
F600A
737NG-AEW&C
787-10
BBJ 737-900ER
747-400PC
CRJ-702
767-300BCF
777-300
DC9
707
737-700
C90GTi
717
206-L
767
BBJ 737-700
747-400ERF
800
777-9
MD80
800XPi
PA-42-1000
206-L1
CRJ-701ER
757-300
206-L4
B36TC
CRJ-900LR
787-8
CRJ-100
737
A319-100
737NG-800BJ
DC10
850XP
767-300ER
737-8200
737NG-700
737NG-700BJ
777
737-100
757-200
767-400
A36
B58
A320-200
MD90
757-200PCF
206-L3
737-900ER
747-400
767-200ERT
402Q
767-200SF
402F
KC-10
MD11
MD80
767-200EREM
767-200ERSF
777-300ER
777-200ER
C90GTx
1900D
F600B
PA-28-R201
747-800
E55
737-9
737-200
PA-31-T1
737NG-800MMA
757-200PC
PA-60-601
727-200
737 MAX 9
B200T
800XPPROLINE21
737-10
717-200
747-8F
747-8
PA-60-601P
767-KC46
CRJ-702ER
747-400F
C90B
208
737-500
777-200F
747
787
Q400
DC10
1900C
PA-31T3
727-100
737NG-800
C90A
MD11
767-200ER
737-300F
A321-200
PA-60-700P
737-700C
777-200
170 moreSee lessEngine Makes
IAE
Engine Models
V2500-A1
V2500-A5
Shipping Details
Hazmat Code
ZND
ECCN
9A991.d
Schedule B
4016930000
8130-3 Eligible
No
Hazmat
No
Part Explosive
No
Item Replacement History
- MS28778-6=24MS28778-6 Gasket, 3⁄8" Tube Outer Diameter
Buy now from
Boeing Distribution (formerly Aviall)
Log In for Price and Availability
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