NSN 5331-00-462-3366 · NIIN 004623366 · Part number 38421-4005
Irl Thermal Systems Ltd · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE U1841
Government record, cited
NSN 5331-00-462-3366 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-462-3366. Manufacturer of record part number: 38421-4005.
The O-Ring, cataloged under National Stock Number 5331-00-462-3366, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Irl Thermal Systems Ltd. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
5331-00-462-3366
Primary Part Number
38421-4005
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Irl Thermal Systems Ltd
Status
ACTIVE
Cross-Sectional Height
0.375 INCHES NOMINAL IN
Material
RUBBER BUTADIENE-STYRENE CLASS SBR
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4810-00-506-2861571-5600-1486580REVAPC39POSSIBLE MATCH
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Possible match (shared part number)Naval Sea Systems Command
5998-01-003-7229102713POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
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6930-01-050-8318POSSIBLE MATCH
REGULATOR,SPECIAL
Possible match (shared part number)
4730-01-306-6418POSSIBLE MATCH
STRAINER ELEMENT,SEDIMENT
Possible match (shared part number)
4730-01-307-8819POSSIBLE MATCH
PARTS KIT,STEAM TRAP
Possible match (shared part number)
4730-01-307-8912POSSIBLE MATCH
TRAP,STEAM
Possible match (shared part number)
5342-01-424-3382102713POSSIBLE MATCH
BRACKET,SHIPPING CONTAINER
Possible match (shared part number)Thermodyne International, Ltd
3110-01-508-5772102713POSSIBLE MATCH
BEARING,ROLLER,NEEDLE
Possible match (shared part number)Marine Travelift Inc
NSN 5331-00-462-3366 is a O-Ring, manufactured by Irl Thermal Systems Ltd, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-462-3366?
NSN 5331-00-462-3366 has 1 manufacturer part number on file: 38421-4005 (Irl Thermal Systems Ltd).
What NSN replaces 5331-00-462-3366?
8 possible matches (shared part number, not a government interchangeability claim): 4810-00-506-2861, 5998-01-003-7229, 6930-01-050-8318. Verify interchangeability with system specifications before substitution.
What are the specifications of 38421-4005?
Key specifications for 38421-4005: Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-STYRENE CLASS SBR. 2 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-462-3366 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.