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NSN 5331-01-155-1780Government record, cited

O-Ring5331-01-155-1780

NSN 5331-01-155-1780 · NIIN 011551780 · Part number 2-21404
Rockford Powertrain Inc Div Powertrain Rockford, Inc. · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 77873
Government record, cited
NSN 5331-01-155-1780 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-155-1780. Manufacturer of record part number: 2-21404.
Also searched as  5331-01-155-1780 · 5331011551780 · NIIN 011551780 · 01-155-1780 · FSC 5331 O-ring · CAGE 77873 · 2-21404 · 2AT317 · 2AT317
Nearby stock numbers  ·
Features
  • O-Ring — FSC 5331
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Rockford Powertrain Inc Div Powertrain Rockford, Inc.
Identification
  • NSN: 5331-01-155-1780
  • NIIN: 011551780
  • FSC: 5331 — O-ring
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 2-21404
  • Manufacturer: Rockford Powertrain Inc Div Powertrain Rockford, Inc.
General Description

The O-Ring, cataloged under National Stock Number 5331-01-155-1780, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Rockford Powertrain Inc Div Powertrain Rockford, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-ring (FSG 53)
ManufacturersOshkosh Defense Llc (CAGE 75Q65); Rockford Powertrain Inc Div Powertrain Rockford, Inc. (CAGE 77873)
Technical Specifications
ParameterValue
NSN5331-01-155-1780
Primary Part Number2-21404
Item NameO-Ring
FSC / FSG5331 / 53 — O-ring
ManufacturerRockford Powertrain Inc Div Powertrain Rockford, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Cross-Reference Index
Part NumberManufacturer
2AT317 Oshkosh Defense Llc (USA)
2-21404 PRIMARY Rockford Powertrain Inc Div Powertrain Rockford, Inc. (USA)
Reference documents
ReferenceMeaning
2AT317 5/9 Secondary reference
Oshkosh Corp
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 5331-01-155-1780?

NSN 5331-01-155-1780 is a O-Ring, manufactured by Rockford Powertrain Inc Div Powertrain Rockford, Inc., classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-155-1780?

NSN 5331-01-155-1780 has 2 manufacturer part numbers on file: 2AT317 (Oshkosh Defense Llc), 2-21404 (Rockford Powertrain Inc Div Powertrain Rockford, Inc.).

Is NSN 5331-01-155-1780 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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