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NSN 5331-01-578-3105Government record, cited
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O-Ring5331-01-578-3105

NSN 5331-01-578-3105 · NIIN 015783105 · Part number 34558-1
Esco Engineering Systems · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 3F8C2
Government record, cited
NSN 5331-01-578-3105 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-578-3105. Manufacturer of record part number: 34558-1.
Also searched as  5331-01-578-3105 · 5331015783105 · NIIN 015783105 · 01-578-3105 · FSC 5331 O-ring · CAGE 3F8C2 · 34558-1
Nearby stock numbers  ·
SECTION O-RING CROSS SECTION
5331-01-578-3105 — O-ring
Features
  • O-Ring — FSC 5331
  • 1 manufacturer part number on file
  • Manufacturer of record: Esco Engineering Systems
Identification
  • NSN: 5331-01-578-3105
  • NIIN: 015783105
  • FSC: 5331 — O-ring
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: 34558-1
  • Manufacturer: Esco Engineering Systems
General Description

The O-Ring, cataloged under National Stock Number 5331-01-578-3105, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Esco Engineering Systems. 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
ParameterValue
NSN5331-01-578-3105
Primary Part Number34558-1
Item NameO-Ring
FSC / FSG5331 / 53 — O-ring
ManufacturerEsco Engineering Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
34558-1 PRIMARY Esco Engineering Systems (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 5331-01-578-3105?

NSN 5331-01-578-3105 is a O-Ring, manufactured by Esco Engineering Systems, classified under FSC 5331, O-ring. Status: active.

What part numbers are listed for NSN 5331-01-578-3105?

NSN 5331-01-578-3105 has 1 manufacturer part number on file: 34558-1 (Esco Engineering Systems).

What are the specifications of 34558-1?

Key specifications for 34558-1: Part Name Assigned by Controlling Agency: RETAINER, PACKING, WATER TWIST. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5331-01-578-3105 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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