The Seal,piston, cataloged under National Stock Number 5330-00-450-4138, 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and Gasket Materials) of the Hardware and Abrasives group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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,piston
FSC / FSG
5330 — Packing and Gasket Materials (FSG 53)
Technical Specifications
Parameter
Value
NSN
5330-00-450-4138
Item Name
Seal,piston
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4020-00-968-135746243POSSIBLE MATCH
ROPE,FIBROUS
Possible match (shared part number)Orion Ropeworks, Llc
5950-01-267-8953KDW309APOSSIBLE MATCH
REACTOR
Possible match (shared part number)Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution
5950-01-305-9227POSSIBLE MATCH
REACTOR
Possible match (shared part number)
5985-01-522-9368S181AM-2450SPOSSIBLE MATCH
ANTENNA
Possible match (shared part number)Science Applications International Corporation Dba Saic
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
46243
3/9Design control — primary reference
Paccar Government Group Co Yarrow Bay Office Pk
Related Parts
4020-00-968-1357POSSIBLE MATCH
ROPE,FIBROUS
46243
5950-01-267-8953POSSIBLE MATCH
REACTOR
KDW309A
5950-01-305-9227POSSIBLE MATCH
REACTOR
5985-01-522-9368POSSIBLE MATCH
ANTENNA
S181AM-2450S
Frequently Asked Questions
What is NSN 5330-00-450-4138?
NSN 5330-00-450-4138 is a Seal,piston, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What NSN replaces 5330-00-450-4138?
4 possible matches (shared part number, not a government interchangeability claim): 4020-00-968-1357, 5950-01-267-8953, 5950-01-305-9227. Verify interchangeability with system specifications before substitution.
Is NSN 5330-00-450-4138 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.