PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS28775-240O-Ring

Sae International Dba Sae International · NSN 5331-00-618-1603 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-618-1603 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-618-1603. Primary manufacturer part number: MS28775-240.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 3.719 INCHES MINIMUM AND 3.749 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Outside Diameter: 3.976 INCHES MINIMUM AND 4.048 INCHES MAXIMUM IN
  • 44 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
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 5331-00-618-1603, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 44 commercial cross-references from 25 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
NSN5331-00-618-1603
Primary Part NumberMS28775-240
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Center Hole Diameter3.719 INCHES MINIMUM AND 3.749 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Outside Diameter3.976 INCHES MINIMUM AND 4.048 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-144-8940 INTERCHANGEABLE
Bearing,ball,annular
5331-00-165-1958AS3209-240 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-291-3070114525-112-51 INTERCHANGEABLE
O-Ring
Grimes Aerospace Company
5331-00-332-9016S11214-240 INTERCHANGEABLE
O-Ring
Trelleborg Sealing Solutions Us, Inc.
5330-00-927-647262490-18 INTERCHANGEABLE
Packing,preformed
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5331-00-979-64256230-18 INTERCHANGEABLE
O-Ring
Aerol Llc
5315-01-164-3393A407782 INTERCHANGEABLE
Pin,shoulder,headless
Measurement Systems Inc
5331-01-260-9856 INTERCHANGEABLE
O-Ring
5331-01-276-0768 INTERCHANGEABLE
O-Ring
6505-01-331-3339NDC10119-0030-18 INTERCHANGEABLE
Contact Lens Disinfecting and Ri
Bausch & Lomb Pharmaceuticals Div Bausch & Lomb Phamaceutical
Cross-Reference Index
Part NumberManufacturer
1000-013PC18 Aluf Industries Inc (USA)
2-240N304-75 Zf Industrieantriebe Witten Gmbh (DEU)
2300-446 PC 48 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
5331PL0891678 Jednolity Indeks Materialowy - Uniform Material Index (POL)
PRP568-240-4067-70 Parco, Llc (USA)
M83248/1-240 Zf Industrieantriebe Witten Gmbh (DEU)
V3E10005PC34 Vacco Industries (USA)
2-240 N304-75 Parker-Hannifin Corp Div O-Ring Division (USA)
AN6230-18 Zf Industrieantriebe Witten Gmbh (DEU)
ARP568-240MIP55 16-70DURM Zf Industrieantriebe Witten Gmbh (DEU)
6230-18 Zf Industrieantriebe Witten Gmbh (DEU)
AN6230B18 Zf Industrieantriebe Witten Gmbh (DEU)
1100-1020-2 Zf Industrieantriebe Witten Gmbh (DEU)
15809D PIECE 92 Liaaen Verft A/s (NOR)
4-07782 Zf Industrieantriebe Witten Gmbh (DEU)
230-927-240-730 -A Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-240 PRIMARY Sae International Dba Sae International (USA)
MIL-P-25732C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS28775-240 Society of Automotive Engineers Inc (USA)
903018 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
3110-00-144-8940INTERCHANGEABLE
BEARING,BALL,ANNULAR
5331-00-165-1958INTERCHANGEABLE
O-RING
AS3209-240
5331-00-291-3070INTERCHANGEABLE
O-RING
114525-112-51
5331-00-332-9016INTERCHANGEABLE
O-RING
S11214-240
5330-00-927-6472INTERCHANGEABLE
PACKING,PREFORMED
62490-18
5331-00-979-6425INTERCHANGEABLE
O-RING
6230-18
5315-01-164-3393INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
A407782
5331-01-260-9856INTERCHANGEABLE
O-RING
5331-01-276-0768INTERCHANGEABLE
O-RING
6505-01-331-3339INTERCHANGEABLE
CONTACT LENS DISINFECTING AND RI
NDC10119-0030-18
5331-01-559-2093INTERCHANGEABLE
O-RING
5855-01-567-3174INTERCHANGEABLE
LENS,INFRARED RECEIVER
903018

Frequently Asked Questions

What is NSN 5331-00-618-1603?

NSN 5331-00-618-1603 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 5331-00-618-1603?

NSN 5331-00-618-1603 has 44 cross-referenced part numbers: 1000-013PC18 (Aluf Industries Inc), 2-240N304-75 (Zf Industrieantriebe Witten Gmbh), 2300-446 PC 48 (Federal Specifications Promulgated by General Services Administration Washington DC), 5331PL0891678 (Jednolity Indeks Materialowy - Uniform Material Index), PRP568-240-4067-70 (Parco, Llc) and 39 more.

What NSN replaces 5331-00-618-1603?

There are 12 known substitutes for 5331-00-618-1603: 3110-00-144-8940, 5331-00-165-1958, 5331-00-291-3070 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS28775-240?

Key specifications for MS28775-240: Center Hole Diameter: 3.719 INCHES MINIMUM AND 3.749 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Outside Diameter: 3.976 INCHES MINIMUM AND 4.048 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-618-1603 still in active supply?

NSN 5331-00-618-1603 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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