NSN 5331-01-123-3528 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-123-3528. Manufacturer of record part number: 125-6B.
Also searched as5331-01-123-3528 ·
5331011233528 ·
NIIN 011233528 ·
01-123-3528 ·
FSC 5331 O-ring · CAGE 28953 · 125-6B
The O-Ring, cataloged under National Stock Number 5331-01-123-3528, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Rix Industries. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
O-Ring
FSC / FSG
5331 — O-ring (FSG 53)
Manufacturers
Rix Industries (CAGE 28953)
Technical Specifications
Parameter
Value
NSN
5331-01-123-3528
Primary Part Number
125-6B
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Rix Industries
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6515-01-369-36131256BPOSSIBLE MATCH
APPLICATOR,LABEL
Possible match (shared part number)Solventum Us Llc
4730-01-481-9210125-6BPOSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
Possible match (shared part number)Fairview Fittings Inc
NSN 5331-01-123-3528 is a O-Ring, manufactured by Rix Industries, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-123-3528?
NSN 5331-01-123-3528 has 1 manufacturer part number on file: 125-6B (Rix Industries).
What NSN replaces 5331-01-123-3528?
2 possible matches (shared part number, not a government interchangeability claim): 6515-01-369-3613, 4730-01-481-9210. Verify interchangeability with system specifications before substitution.
Is NSN 5331-01-123-3528 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.