PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2380O-Ring

Mcnab, Incorporated · NSN 5331-01-266-2971 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-266-2971 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-266-2971. Primary manufacturer part number: 2380.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Mcnab, Incorporated
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-266-2971, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Mcnab, Incorporated. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersMcnab, Incorporated (CAGE 39425)
Technical Specifications
ParameterValue
NSN5331-01-266-2971
Primary Part Number2380
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMcnab, Incorporated
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5342-00-084-778055347 INTERCHANGEABLE
Coupling,clamp,grooved
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5325-00-489-3073MP1641-6 INTERCHANGEABLE
Grommet,nonmetallic
Bae Systems Information and Electronic Systems Integration Inc.
3030-00-528-4614 INTERCHANGEABLE
Belt,v
3030-00-528-4634 INTERCHANGEABLE
Belt,v
5325-00-725-26952186 INTERCHANGEABLE
Grommet,nonmetallic
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3810-00-763-7728 INTERCHANGEABLE
Crane,wheel Mounted
3030-00-919-90965L380 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5325-00-954-4397 INTERCHANGEABLE
Grommet,nonmetallic
6685-00-991-546102-380 INTERCHANGEABLE
Barometer,mercurial
Fisher Scientific Worldwide
5120-00-999-15042380 INTERCHANGEABLE
Puller,mechanical
Wta Tool Llc
Cross-Reference Index
Part NumberManufacturer
2380 Mcnab, Incorporated (USA)
Related Parts
5342-00-084-7780INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
55347
5325-00-489-3073INTERCHANGEABLE
GROMMET,NONMETALLIC
MP1641-6
3030-00-528-4614INTERCHANGEABLE
BELT,V
3030-00-528-4634INTERCHANGEABLE
BELT,V
5325-00-725-2695INTERCHANGEABLE
GROMMET,NONMETALLIC
2186
3810-00-763-7728INTERCHANGEABLE
CRANE,WHEEL MOUNTED
3030-00-919-9096INTERCHANGEABLE
BELT,V
5L380
5325-00-954-4397INTERCHANGEABLE
GROMMET,NONMETALLIC
6685-00-991-5461INTERCHANGEABLE
BAROMETER,MERCURIAL
02-380
5120-00-999-1504INTERCHANGEABLE
PULLER,MECHANICAL
2380
6625-01-070-7854INTERCHANGEABLE
GENERATOR,SIGNAL
5310-01-248-7787INTERCHANGEABLE
WASHER,FLAT
2380

Frequently Asked Questions

What is NSN 5331-01-266-2971?

NSN 5331-01-266-2971 is a O-Ring, manufactured by Mcnab, Incorporated, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-266-2971?

NSN 5331-01-266-2971 has 1 cross-referenced part number: 2380 (Mcnab, Incorporated).

What NSN replaces 5331-01-266-2971?

There are 12 known substitutes for 5331-01-266-2971: 5342-00-084-7780, 5325-00-489-3073, 3030-00-528-4614 and 9 more. Verify interchangeability with system specifications before substitution.

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