Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
Center Hole Diameter: 3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
Material: RUBBER SYNTHETIC
Identification
NSN: 5331-00-081-6485
NIIN: 000816485
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
General Description
The O-Ring, cataloged under National Stock Number 5331-00-081-6485, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
5331-00-081-6485
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Status
ACTIVE
Cross-Sectional Height
0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
Center Hole Diameter
3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN
Material
RUBBER SYNTHETIC
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5950-00-247-0982POSSIBLE MATCH
TRANSFORMER,POWER,VIBRATOR
Possible match (shared part number)
5821-00-318-7202640222-000POSSIBLE MATCH
RETAINER,LAMP
Possible match (shared part number)Stromberg-Carlson Corp a Plessey Telecommunications Co
2520-00-447-544164869HPOSSIBLE MATCH
SHAFT
Possible match (shared part number)Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
3040-00-496-16048303POSSIBLE MATCH
GEARSHAFT,SPUR
Possible match (shared part number)Dana Commercial Vehicle Products, Llc
4820-00-569-860617VPS2POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Oshkosh Defense Llc
5950-00-604-9226POSSIBLE MATCH
REACTOR
Possible match (shared part number)
3010-00-890-5455938D719-1POSSIBLE MATCH
GEARCASE-MOTOR
Possible match (shared part number)Mti Motion Llc Dba Mti Motion
5950-01-093-52433154516POSSIBLE MATCH
REACTOR
Possible match (shared part number)Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-01-617-261253-39POSSIBLE MATCH
NUT,SELF-LOCKING,HEXAGON
Possible match (shared part number)Rix Industries
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
5339
3/9Design control — primary reference
Gh Bettis a Galveston-Houston Co
205339
5/9Secondary reference
Gh Bettis a Galveston-Houston Co
Related Parts
5950-00-247-0982POSSIBLE MATCH
TRANSFORMER,POWER,VIBRATOR
5821-00-318-7202POSSIBLE MATCH
RETAINER,LAMP
640222-000
2520-00-447-5441POSSIBLE MATCH
SHAFT
64869H
3040-00-496-1604POSSIBLE MATCH
GEARSHAFT,SPUR
8303
4820-00-569-8606POSSIBLE MATCH
SEAT,VALVE
17VPS2
5950-00-604-9226POSSIBLE MATCH
REACTOR
3010-00-890-5455POSSIBLE MATCH
GEARCASE-MOTOR
938D719-1
5950-01-093-5243POSSIBLE MATCH
REACTOR
3154516
5310-01-617-2612POSSIBLE MATCH
NUT,SELF-LOCKING,HEXAGON
53-39
Frequently Asked Questions
What is NSN 5331-00-081-6485?
NSN 5331-00-081-6485 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
What NSN replaces 5331-00-081-6485?
9 possible matches (shared part number, not a government interchangeability claim): 5950-00-247-0982, 5821-00-318-7202, 2520-00-447-5441. Verify interchangeability with system specifications before substitution.
What are the specifications of 5331-00-081-6485?
Key specifications for 5331-00-081-6485: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Center Hole Diameter: 3.210 INCHES MINIMUM AND 3.240 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-081-6485 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.