NSN 5330-01-720-0538 · NIIN 017200538 · Part number 528-5684
Caterpillar Inc Div Caterpillar Defense · FSC 5330 — Packing and Gasket Materials · FSG 53 — Hardware and Abrasives · CAGE 11083
Government record, cited
NSN 5330-01-720-0538 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-720-0538. Manufacturer of record part number: 528-5684.
Also searched as5330-01-720-0538 ·
5330017200538 ·
NIIN 017200538 ·
01-720-0538 ·
FSC 5330 Packing and Gasket Materials · CAGE 11083 · 528-5684
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 5330-01-720-0538
NIIN: 017200538
FSC: 5330 — Packing and Gasket Materials
FSG: 53 — Hardware and Abrasives
Primary part number: 528-5684
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Seal,plain, cataloged under National Stock Number 5330-01-720-0538, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 4 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5330-01-720-0538
Primary Part Number
528-5684
Item Name
Seal,plain
FSC / FSG
5330 / 53 — Packing and Gasket Materials
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
Seal Width
0.817 INCHES NOMINAL IN
Outside Diameter
8.661 INCHES NOMINAL IN
Material
PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Construction
ONE-PIECE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085
RETAINER
5330-00-000-0167
PARTS KIT,SEAL REPLACEMENT,MECHA
5330-00-000-5275
5330-00-000-5275 · Item name not on file
5330-00-001-1260
SEAL,NONMETALLIC SPECIAL SHAPED
5330-00-001-1833
SEAL,PLAIN ENCASED
5330-00-001-1844
GLAND,RESERVOIR,INDICATOR END
5330-00-001-1845
5330-00-001-1845 · Item name not on file
5330-00-001-1846
5330-00-001-1846 · Item name not on file
Frequently Asked Questions
What is NSN 5330-01-720-0538?
NSN 5330-01-720-0538 is a Seal,plain, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What part numbers are listed for NSN 5330-01-720-0538?
NSN 5330-01-720-0538 has 1 manufacturer part number on file: 528-5684 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 528-5684?
Key specifications for 528-5684: Seal Width: 0.817 INCHES NOMINAL IN; Outside Diameter: 8.661 INCHES NOMINAL IN; Special Features: INSIDE DIAMETER: 6.212 IN. HOLE SIZE (IN):0.315 (9X) IN; Part Name Assigned by Controlling Agency: 158MM SHAFT DIAMETER CRANKSHAFT RUBBER SEAL MM. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5330-01-720-0538 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.