Seal, Plain Encased5330-00-591-7638

NSN 5330-00-591-7638 · NIIN 005917638

FSC 5330 — Packing and Gasket Materials · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5330-00-591-7638 · 5330005917638 · NIIN 005917638 · 00-591-7638 · FSC 5330 Packing and Gasket Materials · 8QH1181 · 8QH1181 · 6532S

Nearby stock numbers ← 5330-00-591-7550 · 5330-00-591-7651 →

5330-00-591-7638 — Packing and Gasket Materials

Features

Seal,plain Encased — FSC 5330
Temp Rating: -65.0 CELSIUS AND 225.0 CELSIUS DEGC
Seal Width: 0.578 INCHES NOMINAL IN
Sealing Element Style: ANGULAR-EXTERNAL
Housing Bore Diameter: 3.251 INCHES NOMINAL IN
Case Style: SQUARE
Accommodated Shaft Diameter: 2.688 INCHES NOMINAL IN
Material: RUBBER SYNTHETIC SEALING ELEMENT

Identification

NSN: 5330-00-591-7638
NIIN: 005917638
FSC: 5330 — Packing and Gasket Materials
FSG: 53 — Hardware and Abrasives

General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-591-7638, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5330-00-591-7638
Item Name	Seal,plain Encased
FSC / FSG	5330 / 53 — Packing and Gasket Materials
Status	ACTIVE
Temp Rating	-65.0 CELSIUS AND 225.0 CELSIUS DEGC
Seal Width	0.578 INCHES NOMINAL IN
Sealing Element Style	ANGULAR-EXTERNAL
Housing Bore Diameter	3.251 INCHES NOMINAL IN
Case Style	SQUARE
Accommodated Shaft Diameter	2.688 INCHES NOMINAL IN
Material	RUBBER SYNTHETIC SEALING ELEMENT
Attachment Method	CEMENTED

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
8QH1181	5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales
8QH1181	3/9 Design control — primary reference Ford Motor Company
6532S	5/9 Secondary reference Federal-Mogul Corp Chassis Products Div

No interchangeability data on file.

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 5330-00-591-7638?

NSN 5330-00-591-7638 is a Seal,plain Encased, classified under FSC 5330, Packing and Gasket Materials. Status: active.

What are the specifications of 5330-00-591-7638?

Key specifications for 5330-00-591-7638: Temp Rating: -65.0 CELSIUS AND 225.0 CELSIUS DEGC; Seal Width: 0.578 INCHES NOMINAL IN; Sealing Element Style: ANGULAR-EXTERNAL; Housing Bore Diameter: 3.251 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5330-00-591-7638 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.

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