PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12880-43O-Ring

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 5331-01-218-1185 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-218-1185 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-218-1185. Primary manufacturer part number: 12880-43.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Air & Liquid Systems Corporation Dba Buffalo Pumps
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-218-1185, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Air & Liquid Systems Corporation Dba Buffalo Pumps. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersAir & Liquid Systems Corporation Dba Buffalo Pumps (CAGE 83130)
Technical Specifications
ParameterValue
NSN5331-01-218-1185
Primary Part Number12880-43
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2910-00-076-97740-13151 INTERCHANGEABLE
Carburetor,float
Zenith Fuel Systems Llc
5315-00-281-732912747 INTERCHANGEABLE
Key,machine
Itw Food Equipment Group Llc Dba Hobart Service
5136-00-729-568354779 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5365-01-190-03361-410-202-086 INTERCHANGEABLE
Spacer,sleeve
Robert Bosch Llc
5180-01-355-2166 INTERCHANGEABLE
Tool Kit,tire Servicing
5310-01-564-144112880 INTERCHANGEABLE
Nut,vertical Adjustable
Carlisle & Finch Co
3950-01-601-115812880 INTERCHANGEABLE
Drum,winch
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
12880 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
12880-43 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
2910-00-076-9774INTERCHANGEABLE
CARBURETOR,FLOAT
0-13151
5315-00-281-7329INTERCHANGEABLE
KEY,MACHINE
12747
5136-00-729-5683INTERCHANGEABLE
TAP,THREAD CUTTING
54779
5365-01-190-0336INTERCHANGEABLE
SPACER,SLEEVE
1-410-202-086
5180-01-355-2166INTERCHANGEABLE
TOOL KIT,TIRE SERVICING
5310-01-564-1441INTERCHANGEABLE
NUT,VERTICAL ADJUSTABLE
12880
3950-01-601-1158INTERCHANGEABLE
DRUM,WINCH
12880

Frequently Asked Questions

What is NSN 5331-01-218-1185?

NSN 5331-01-218-1185 is a O-Ring, manufactured by Air & Liquid Systems Corporation Dba Buffalo Pumps, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-218-1185?

NSN 5331-01-218-1185 has 2 cross-referenced part numbers: 12880 (Air & Liquid Systems Corporation Dba Buffalo Pumps), 12880-43 (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 5331-01-218-1185?

There are 7 known substitutes for 5331-01-218-1185: 2910-00-076-9774, 5315-00-281-7329, 5136-00-729-5683 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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