NSN 5331-00-210-5522 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-210-5522. Manufacturer of record part number: 109439.
Also searched as5331-00-210-5522 ·
5331002105522 ·
NIIN 002105522 ·
00-210-5522 ·
FSC 5331 O-ring · CAGE 21930 · 109439
Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Center Hole Diameter: 6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN
Material: RUBBER CHLOROPRENE CLASS CR
1 manufacturer part number on file
Manufacturer of record: Flodyne Controls Inc
Identification
NSN: 5331-00-210-5522
NIIN: 002105522
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 109439
Manufacturer: Flodyne Controls Inc
General Description
The O-Ring, cataloged under National Stock Number 5331-00-210-5522, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Flodyne Controls Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5331-00-210-5522
Primary Part Number
109439
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Flodyne Controls Inc
Status
ACTIVE
Cross-Sectional Height
0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Center Hole Diameter
6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN
Material
RUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-00-304-9010109-439POSSIBLE MATCH
RETAINER,PACKING
Possible match (shared part number)Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division
2520-00-377-88101898X440POSSIBLE MATCH
PLUNGER,PILOT,STEER
Possible match (shared part number)Meritor Heavy Vehicle Systems, Llc
2530-00-837-8394109439POSSIBLE MATCH
RETAINER,WASHER
Possible match (shared part number)Dana Off Highway Products, Llc
5310-00-949-4275109439POSSIBLE MATCH
WASHER,KEY
Possible match (shared part number)Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
NSN 5331-00-210-5522 is a O-Ring, manufactured by Flodyne Controls Inc, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-210-5522?
NSN 5331-00-210-5522 has 1 manufacturer part number on file: 109439 (Flodyne Controls Inc).
What NSN replaces 5331-00-210-5522?
4 possible matches (shared part number, not a government interchangeability claim): 5330-00-304-9010, 2520-00-377-8810, 2530-00-837-8394. Verify interchangeability with system specifications before substitution.
What are the specifications of 109439?
Key specifications for 109439: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Center Hole Diameter: 6.452 INCHES MINIMUM AND 6.498 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-210-5522 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.