PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS28775-261O-Ring

Sae International Dba Sae International · NSN 5331-01-106-7286 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-106-7286 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-106-7286. Primary manufacturer part number: MS28775-261.
Features
  • O-Ring — FSC 5331
  • Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
  • Center Hole Diameter: 6.711 INCHES MINIMUM AND 6.757 INCHES MAXIMUM IN
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Outside Diameter: 6.964 INCHES MINIMUM AND 7.060 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 41 verified cross-references
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 5331-01-106-7286, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 41 commercial cross-references from 20 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
NSN5331-01-106-7286
Primary Part NumberMS28775-261
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Temp Rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Center Hole Diameter6.711 INCHES MINIMUM AND 6.757 INCHES MAXIMUM IN
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Outside Diameter6.964 INCHES MINIMUM AND 7.060 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-069-90492261 INTERCHANGEABLE
Seat,valve
Imi Cash Valve Inc
6685-00-174-62392261-08000QF INTERCHANGEABLE
Thermometer,self-Indicating,bime
Control Specialties Inc
5331-00-197-9606 INTERCHANGEABLE
O-Ring
4920-00-257-50952261 INTERCHANGEABLE
Accessory Kit,test Set
Bae Systems Information and Electronic Systems Integration Inc.
9390-00-290-4021 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
6685-00-521-0656PH660U INTERCHANGEABLE
Thermometer,self-Indicating,bime
Joint Electronics Type Designation System
6685-00-663-80936-01276 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Sigma Products & Mfg
4920-00-708-30242261 INTERCHANGEABLE
Cable Assy
Marvel Manufacturing Co Div the Marvel Manufacturing Company
6685-00-764-4248 INTERCHANGEABLE
Thermometer,self-Indicating,bime
5985-00-975-4038RLA150-NF INTERCHANGEABLE
Adapter,waveguide
Andrew Llc
Cross-Reference Index
Part NumberManufacturer
AS28775-261 Sae International Dba Sae International (USA)
Z00.N7423069255 Daher Aerospace - Ex Socata (FRA)
A49408MZZ Hunt Valve Company, Inc. (USA)
A49438 Hunt Valve Company Inc Dba Union Flonetics (USA)
D49440ITEM 10 Hunt Valve Company Inc Dba Union Flonetics (USA)
D49440ITEM 10 Hunt Valve Company, Inc. (USA)
A49438 Hunt Valve Company, Inc. (USA)
ARP568-261MILP25732 Society of Automotive Engineers Inc (USA)
2-261 Zf Industrieantriebe Witten Gmbh (DEU)
261-846-70 Parker Hannifin Corporation Div O-Ring Division (USA)
AN6230-39 Aeronautical Standards Group Dept of Navy and Air Force (USA)
2-261N304-75 Parker-Hannifin Corp Div O-Ring Division (USA)
D49267 ITEM 28 Hunt Valve Company, Inc. (USA)
PRP6230-39 Parker Hannifin Corporation Div O-Ring Division (USA)
D49267 ITEM 28 Hunt Valve Company Inc Dba Union Flonetics (USA)
N91-84339 Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-261 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
ARP568-261MILP5 516-70DURM Zf Industrieantriebe Witten Gmbh (DEU)
2011-145PC49 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
1446-261 Parker-Hannifin Corporation Div O-Ring Division (USA)
Related Parts
4820-00-069-9049INTERCHANGEABLE
SEAT,VALVE
2261
6685-00-174-6239INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
2261-08000QF
5331-00-197-9606INTERCHANGEABLE
O-RING
4920-00-257-5095INTERCHANGEABLE
ACCESSORY KIT,TEST SET
2261
9390-00-290-4021INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
6685-00-521-0656INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
PH660U
6685-00-663-8093INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
6-01276
4920-00-708-3024INTERCHANGEABLE
CABLE ASSY
2261
6685-00-764-4248INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
5985-00-975-4038INTERCHANGEABLE
ADAPTER,WAVEGUIDE
RLA150-NF
6685-00-979-8961INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
5331-00-999-8565INTERCHANGEABLE
O-RING
2-261S604-70

Frequently Asked Questions

What is NSN 5331-01-106-7286?

NSN 5331-01-106-7286 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-106-7286?

NSN 5331-01-106-7286 has 41 cross-referenced part numbers: AS28775-261 (Sae International Dba Sae International), Z00.N7423069255 (Daher Aerospace - Ex Socata), A49408MZZ (Hunt Valve Company, Inc.), A49438 (Hunt Valve Company Inc Dba Union Flonetics), D49440ITEM 10 (Hunt Valve Company Inc Dba Union Flonetics) and 36 more.

What NSN replaces 5331-01-106-7286?

There are 12 known substitutes for 5331-01-106-7286: 4820-00-069-9049, 6685-00-174-6239, 5331-00-197-9606 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS28775-261?

Key specifications for MS28775-261: Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF; Center Hole Diameter: 6.711 INCHES MINIMUM AND 6.757 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-106-7286 still in active supply?

NSN 5331-01-106-7286 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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