NSN 5331-01-311-5958 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-311-5958. Manufacturer of record part number: 877-51.
Also searched as5331-01-311-5958 ·
5331013115958 ·
NIIN 013115958 ·
01-311-5958 ·
FSC 5331 O-ring · CAGE 08576 · 877-51
Manufacturer of record: Pentair Filtration Solutions, Llc
Identification
NSN: 5331-01-311-5958
NIIN: 013115958
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 877-51
Manufacturer: Pentair Filtration Solutions, Llc
General Description
The O-Ring, cataloged under National Stock Number 5331-01-311-5958, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pentair Filtration Solutions, Llc. 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
Pentair Filtration Solutions, Llc (CAGE 08576)
Technical Specifications
Parameter
Value
NSN
5331-01-311-5958
Primary Part Number
877-51
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Pentair Filtration Solutions, Llc
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.
3455-01-332-5401POSSIBLE MATCH
CUTTER BIT,TOOL HOLDER
Possible match (shared part number)
8465-01-446-86198775-1POSSIBLE MATCH
BELT,MILITARY POLICE
Possible match (shared part number)Michaels of Oregon Co Dba Uncle Mikes
NSN 5331-01-311-5958 is a O-Ring, manufactured by Pentair Filtration Solutions, Llc, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-311-5958?
NSN 5331-01-311-5958 has 1 manufacturer part number on file: 877-51 (Pentair Filtration Solutions, Llc).
What NSN replaces 5331-01-311-5958?
2 possible matches (shared part number, not a government interchangeability claim): 3455-01-332-5401, 8465-01-446-8619. Verify interchangeability with system specifications before substitution.
Is NSN 5331-01-311-5958 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.