NSN 5331-01-550-2100 · NIIN 015502100 · Part number 03D-009-B07
Thermal Engineering International (usa) Inc. · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 1MME1
Government record, cited
NSN 5331-01-550-2100 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-550-2100. Manufacturer of record part number: 03D-009-B07.
Manufacturer of record: Thermal Engineering International (usa) Inc.
Identification
NSN: 5331-01-550-2100
NIIN: 015502100
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 03D-009-B07
Manufacturer: Thermal Engineering International (usa) Inc.
General Description
The O-Ring, cataloged under National Stock Number 5331-01-550-2100, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Thermal Engineering International (usa) Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
O-Ring
FSC / FSG
5331 — O-ring (FSG 53)
Manufacturers
Thermal Engineering International (usa) Inc. (CAGE 1MME1)
Technical Specifications
Parameter
Value
NSN
5331-01-550-2100
Primary Part Number
03D-009-B07
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Thermal Engineering International (usa) Inc.
Status
ACTIVE
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5331-01-550-211003D-009-B08POSSIBLE MATCH
O-RING
Possible match (shared part number)Thermal Engineering International (usa) Inc.
5331-01-550-213103D-009-B12POSSIBLE MATCH
O-RING
Possible match (shared part number)Thermal Engineering International (usa) Inc.
5331-01-550-214003D-009-B27POSSIBLE MATCH
O-RING
Possible match (shared part number)Thermal Engineering International (usa) Inc.
5331-01-550-215503D-009-B18POSSIBLE MATCH
O-RING
Possible match (shared part number)Thermal Engineering International (usa) Inc.
5331-01-550-216303D-009-B13POSSIBLE MATCH
O-RING
Possible match (shared part number)Thermal Engineering International (usa) Inc.
Thermal Engineering International (usa) Inc. (USA)
Reference documents
Reference
Meaning
03D-009-D01
D/9Drawing number reference only
Thermal Engineering International (usa) Inc.
03D-009-B07
5/9Secondary reference
Thermal Engineering International Usa Inc
03D-009-D01 ITEM 6
5/9Secondary reference
Thermal Engineering International Usa Inc
Related Parts
5331-01-550-2110POSSIBLE MATCH
O-RING
03D-009-B08
5331-01-550-2131POSSIBLE MATCH
O-RING
03D-009-B12
5331-01-550-2140POSSIBLE MATCH
O-RING
03D-009-B27
5331-01-550-2155POSSIBLE MATCH
O-RING
03D-009-B18
5331-01-550-2163POSSIBLE MATCH
O-RING
03D-009-B13
Frequently Asked Questions
What is NSN 5331-01-550-2100?
NSN 5331-01-550-2100 is a O-Ring, manufactured by Thermal Engineering International (usa) Inc., classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-01-550-2100?
NSN 5331-01-550-2100 has 2 manufacturer part numbers on file: 03D-009-B07 (Thermal Engineering International (usa) Inc.), 03D-009-D01 ITEM 6 (Thermal Engineering International (usa) Inc.).
What NSN replaces 5331-01-550-2100?
5 possible matches (shared part number, not a government interchangeability claim): 5331-01-550-2110, 5331-01-550-2131, 5331-01-550-2140. Verify interchangeability with system specifications before substitution.
Is NSN 5331-01-550-2100 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.