The Seal Ring,metal, cataloged under National Stock Number 5330-01-202-2639, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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.
Catalog Facts
Item Name
Seal Ring,metal
FSC / FSG
5330 — Packing and Gasket Materials (FSG 53)
Technical Specifications
Parameter
Value
NSN
5330-01-202-2639
Item Name
Seal Ring,metal
FSC / FSG
5330 / 53 — Packing and Gasket Materials
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6520-01-290-826520526POSSIBLE MATCH
IMPRESSION MATERIAL MIXING TIP,G
Possible match (shared part number)Kerr Corporation
5310-01-306-464120526POSSIBLE MATCH
WASHER,LOCK
Possible match (shared part number)Funk Mfg Co Sub of Deere and Co
4820-01-393-0473POSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)
5330-01-647-831220526POSSIBLE MATCH
GASKET
Possible match (shared part number)Berg Manufacturing, Inc.
5310-01-707-329320-23050POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Rix Industries
5310-01-707-331720-4564POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Rix Industries
5310-01-707-3380A53-63POSSIBLE MATCH
NUT,SELF-LOCKING,HEXAGON
Possible match (shared part number)Rix Industries
5306-01-707-343134-681POSSIBLE MATCH
BOLT,SHOULDER
Possible match (shared part number)Rix Industries
3040-01-707-343638-20380POSSIBLE MATCH
WEIGHT,COUNTERBALANCE
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
20526
3/2Design control — primary reference
U.S. Government activity
Related Parts
6520-01-290-8265POSSIBLE MATCH
IMPRESSION MATERIAL MIXING TIP,G
20526
5310-01-306-4641POSSIBLE MATCH
WASHER,LOCK
20526
4820-01-393-0473POSSIBLE MATCH
VALVE,GLOBE
5330-01-647-8312POSSIBLE MATCH
GASKET
20526
5310-01-707-3293POSSIBLE MATCH
WASHER,FLAT
20-23050
5310-01-707-3317POSSIBLE MATCH
WASHER,FLAT
20-4564
5310-01-707-3380POSSIBLE MATCH
NUT,SELF-LOCKING,HEXAGON
A53-63
5306-01-707-3431POSSIBLE MATCH
BOLT,SHOULDER
34-681
3040-01-707-3436POSSIBLE MATCH
WEIGHT,COUNTERBALANCE
38-20380
Frequently Asked Questions
What is NSN 5330-01-202-2639?
NSN 5330-01-202-2639 is a Seal Ring,metal, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What NSN replaces 5330-01-202-2639?
9 possible matches (shared part number, not a government interchangeability claim): 6520-01-290-8265, 5310-01-306-4641, 4820-01-393-0473. Verify interchangeability with system specifications before substitution.
Is NSN 5330-01-202-2639 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.