PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS28778-8O-Ring

Society of Automotive Engineers Inc · NSN 5331-01-220-1924 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-220-1924 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-220-1924. Primary manufacturer part number: AS28778-8.
Features
  • O-Ring — FSC 5331
  • 14 verified cross-references
  • Primary manufacturer: Society of Automotive Engineers Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-220-1924, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. This item has 14 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersSociety of Automotive Engineers Inc (CAGE 81343); Parker-Hannifin Corp Div O-Ring Division (CAGE 02697); Mc Farland Pump Co Llc (CAGE 99094); Sae International Dba Sae International (CAGE 0U583); Jednolity Indeks Materialowy - Uniform Material Index (CAGE 9009H)
Technical Specifications
ParameterValue
NSN5331-01-220-1924
Primary Part NumberAS28778-8
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5331-00-006-2249 INTERCHANGEABLE
O-Ring
5331-00-808-079410596841-5 INTERCHANGEABLE
O-Ring
Us Army Aviation and Missile Command
4730-01-092-6954 INTERCHANGEABLE
Locknut,tube Fitting
5331-01-273-1002 INTERCHANGEABLE
O-Ring
5330-01-549-8046MS28778-8 INTERCHANGEABLE
Packing,preformed
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
5331-01-722-2601MS28778-8 INTERCHANGEABLE
O-Ring
Cdk Mobile Systems Inc
Cross-Reference Index
Part NumberManufacturer
AS28778-8 Society of Automotive Engineers Inc (USA)
MS28778-8 Parker-Hannifin Corp Div O-Ring Division (USA)
23A-2779SYM53 Mc Farland Pump Co Llc (USA)
MS28778-8 Sae International Dba Sae International (USA)
5331PL0166657 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS28778-8 Sae International Dba Sae International (USA)
MS28778-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
7255-237 PC 65 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
MS28778-8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
820-5348437-16 Naval Sea Systems Command (USA)
9622385 Mc Farland Pump Co Llc (USA)
5331PL0652315 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AD-4098-8Y8 PC.9 Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA)
MS28778-8 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-006-2249INTERCHANGEABLE
O-RING
5331-00-808-0794INTERCHANGEABLE
O-RING
10596841-5
4730-01-092-6954INTERCHANGEABLE
LOCKNUT,TUBE FITTING
5331-01-273-1002INTERCHANGEABLE
O-RING
5330-01-549-8046INTERCHANGEABLE
PACKING,PREFORMED
MS28778-8
5331-01-722-2601INTERCHANGEABLE
O-RING
MS28778-8

Frequently Asked Questions

What is NSN 5331-01-220-1924?

NSN 5331-01-220-1924 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-220-1924?

NSN 5331-01-220-1924 has 14 cross-referenced part numbers: AS28778-8 (Society of Automotive Engineers Inc), MS28778-8 (Parker-Hannifin Corp Div O-Ring Division), 23A-2779SYM53 (Mc Farland Pump Co Llc), MS28778-8 (Sae International Dba Sae International), 5331PL0166657 (Jednolity Indeks Materialowy - Uniform Material Index) and 9 more.

What NSN replaces 5331-01-220-1924?

There are 6 known substitutes for 5331-01-220-1924: 5331-00-006-2249, 5331-00-808-0794, 4730-01-092-6954 and 3 more. Verify interchangeability with system specifications before substitution.

Is NSN 5331-01-220-1924 still in active supply?

NSN 5331-01-220-1924 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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