O-Ring 5331-01-278-2021 NSN 5331-01-278-2021 · NIIN 012782021 · Part number 1164-8-12
Perko Inc · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 46576
NSN 5331-01-278-2021 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-278-2021. Manufacturer of record part number: 1164-8-12 .
Also searched as
5331-01-278-2021 ·
5331012782021 ·
NIIN 012782021 ·
01-278-2021 ·
FSC 5331 O-ring · CAGE 46576 · 1164-8-12
Nearby stock numbers
← 5331-01-278-1754 O-Ring
·
5331-01-278-2022 O-Ring →
SECTION
O-RING CROSS SECTION
5331-01-278-2021 — O-ring
Features
O-Ring — FSC 5331 Cross-Sectional Height: 0.125 INCHES NOMINAL IN 1 manufacturer part number on file Manufacturer of record: Perko Inc
Identification
NSN: 5331-01-278-2021
NIIN: 012782021
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 1164-8-12
Manufacturer: Perko Inc
General Description
The O-Ring, cataloged under National Stock Number 5331-01-278-2021, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Perko Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 5331-01-278-2021 Primary Part Number 1164-8-12 Item Name O-Ring FSC / FSG 5331 / 53 — O-ring Manufacturer Perko Inc Status ACTIVE Cross-Sectional Height 0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
1164-8-12 PRIMARY Perko Inc (USA)
No interchangeability data on file.
Other items in FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971
O-RING
5331-00-001-1979
O-RING
5331-00-001-3904
O-RING
5331-00-001-3905
O-RING
5331-00-001-3906
O-RING
5331-00-001-3908
O-RING
5331-00-001-3923
O-RING
5331-00-001-3924
O-RING
Frequently Asked Questions
What is NSN 5331-01-278-2021?
NSN 5331-01-278-2021 is a O-Ring, manufactured by Perko Inc, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-278-2021?
NSN 5331-01-278-2021 has 1 manufacturer part number on file: 1164-8-12 (Perko Inc).
What are the specifications of 1164-8-12?
Key specifications for 1164-8-12: Cross-Sectional Height: 0.125 INCHES NOMINAL IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 5331-01-278-2021 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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