PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5700594O-Ring

Leroi International Inc Dba Compair Leroi · NSN 5331-01-351-6991 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-351-6991 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-351-6991. Primary manufacturer part number: 5700594.
Features
  • O-Ring — FSC 5331
  • 4 verified cross-references
  • Primary manufacturer: Leroi International Inc Dba Compair Leroi
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-351-6991, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Leroi International Inc Dba Compair Leroi. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersLeroi International Inc Dba Compair Leroi (CAGE 1XBP3); Goldshield Pharmaceuticals Ltd (CAGE U8737); Compair Kellogg Div of Robertshaw Controls Co (CAGE 53239)
Technical Specifications
ParameterValue
NSN5331-01-351-6991
Primary Part Number5700594
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerLeroi International Inc Dba Compair Leroi
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-781-25329799 INTERCHANGEABLE
Seal,plain
Johns Manville Intl
2805-00-991-83159799 INTERCHANGEABLE
Flange Manifold
Dresser, Llc
6105-01-202-05029799 INTERCHANGEABLE
Motor,alternating Current
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5340-01-267-6429 INTERCHANGEABLE
Cap,protective,dust and Moisture
6515-01-561-66129799 INTERCHANGEABLE
Holder,surgical Tube,utility
Hollister Inc
Cross-Reference Index
Part NumberManufacturer
5700594 PRIMARY Leroi International Inc Dba Compair Leroi (USA)
9799 Goldshield Pharmaceuticals Ltd (GBR)
5700594 Compair Kellogg Div of Robertshaw Controls Co (USA)
9799 Compair Kellogg Div of Robertshaw Controls Co (USA)
Related Parts
5330-00-781-2532INTERCHANGEABLE
SEAL,PLAIN
9799
2805-00-991-8315INTERCHANGEABLE
FLANGE MANIFOLD
9799
6105-01-202-0502INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
9799
5340-01-267-6429INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
6515-01-561-6612INTERCHANGEABLE
HOLDER,SURGICAL TUBE,UTILITY
9799

Frequently Asked Questions

What is NSN 5331-01-351-6991?

NSN 5331-01-351-6991 is a O-Ring, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-351-6991?

NSN 5331-01-351-6991 has 4 cross-referenced part numbers: 5700594 (Leroi International Inc Dba Compair Leroi), 9799 (Goldshield Pharmaceuticals Ltd), 5700594 (Compair Kellogg Div of Robertshaw Controls Co), 9799 (Compair Kellogg Div of Robertshaw Controls Co).

What NSN replaces 5331-01-351-6991?

There are 5 known substitutes for 5331-01-351-6991: 5330-00-781-2532, 2805-00-991-8315, 6105-01-202-0502 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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