PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45308O-Ring

Pentair Water Treatment · NSN 5331-01-526-5361 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-526-5361 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-526-5361. Primary manufacturer part number: 45308.
Features
  • O-Ring — FSC 5331
  • 4 verified cross-references
  • Primary manufacturer: Pentair Water Treatment
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-526-5361, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Pentair Water Treatment. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-526-5361
Primary Part Number45308
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerPentair Water Treatment
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-156-78890905308 INTERCHANGEABLE
Bearing,ball,annular
Agco Corp Parts Opn
5998-00-327-470450290 INTERCHANGEABLE
Circuit Card Assembly
Alliant Techsystems Operations Llc Div Defense Electronic Systems
5965-00-860-895461B21712 INTERCHANGEABLE
Cushion,ear
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5950-00-953-1566SM-B-528529 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3610-01-300-104850290 INTERCHANGEABLE
Easel Electronic
Ricoh Americas Corporation
3040-01-337-7308 INTERCHANGEABLE
Shaft,shouldered
4820-01-341-481750290-1 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Fisica Applied Technologies, Inc. Div Randtron Antenna Systems
5995-01-494-744250F6386 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Newark Electronics Corporation Dba Newark
5310-01-624-814545308 INTERCHANGEABLE
Nut,plain,cap
Greystone, Inc.
5995-01-667-781645-308 INTERCHANGEABLE
Cable Assembly,radio Frequency
Gc/waldom Inc
Cross-Reference Index
Part NumberManufacturer
45308 Pentair Water Treatment (USA)
CH50290 Pentair Water Treatment (oh) Company Dba Pentair Water Div Codeline, Structural, Advanced Structures (USA)
45308 Pentair Water Treatment (oh) Company Dba Pentair Water Div Codeline, Structural, Advanced Structures (USA)
50290 Pentair Water Treatment (oh) Company Dba Pentair Water Div Codeline, Structural, Advanced Structures (USA)
Related Parts
3110-00-156-7889INTERCHANGEABLE
BEARING,BALL,ANNULAR
0905308
5998-00-327-4704INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
50290
5965-00-860-8954INTERCHANGEABLE
CUSHION,EAR
61B21712
5950-00-953-1566INTERCHANGEABLE
REACTOR
SM-B-528529
3610-01-300-1048INTERCHANGEABLE
EASEL ELECTRONIC
50290
3040-01-337-7308INTERCHANGEABLE
SHAFT,SHOULDERED
4820-01-341-4817INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
50290-1
5995-01-494-7442INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
50F6386
5310-01-624-8145INTERCHANGEABLE
NUT,PLAIN,CAP
45308
5995-01-667-7816INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
45-308

Frequently Asked Questions

What is NSN 5331-01-526-5361?

NSN 5331-01-526-5361 is a O-Ring, manufactured by Pentair Water Treatment, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-526-5361?

NSN 5331-01-526-5361 has 4 cross-referenced part numbers: 45308 (Pentair Water Treatment), CH50290 (Pentair Water Treatment (oh) Company Dba Pentair Water Div Codeline, Structural, Advanced Structures), 45308 (Pentair Water Treatment (oh) Company Dba Pentair Water Div Codeline, Structural, Advanced Structures), 50290 (Pentair Water Treatment (oh) Company Dba Pentair Water Div Codeline, Structural, Advanced Structures).

What NSN replaces 5331-01-526-5361?

There are 10 known substitutes for 5331-01-526-5361: 3110-00-156-7889, 5998-00-327-4704, 5965-00-860-8954 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45308?

Key specifications for 45308: End Item Identification: TACTICAL WATER PURIFICATION SYS; TWPS 4610-01-488-9656; Special Features: SEAL, ADAPTER. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com