PartsTable
Technical Data Sheet
Download PDF

639265 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

639265: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: LEATHER SEALING ELEMENT B, case_style: SQUARE, seal_width: 0.593 INCHES NOMINAL IN, housing_bore_diameter: 3.155 INCHES MINIMUM AND 3.160 INCHES MAXIMUM IN, sealing_element_style: VERTICAL-ANGULAR, accommodated_shaft_diameter: 1.560 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-844-0097, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
639265
NSN: 5330-00-844-0097
FSC: 5330 — Packing and Gasket Materials
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT B
case_styleSQUARE
seal_width0.593 INCHES NOMINAL IN
housing_bore_diameter3.155 INCHES MINIMUM AND 3.160 INCHES MAXIMUM IN
sealing_element_styleVERTICAL-ANGULAR
accommodated_shaft_diameter1.560 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN
NSN5330-00-844-0097
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 639265 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAL WIDTH: 0.593 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
•
HOUSING BORE DIAMETER: 3.155 INCHES MINIMUM AND 3.160 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.560 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN
•
MATERIAL: LEATHER SEALING ELEMENT B
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.593 INCHES NOMINAL IN
SEALING ELEMENT STYLEVERTICAL-ANGULAR
HOUSING BORE DIAMETER3.155 INCHES MINIMUM AND 3.160 INCHES MAXIMUM IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.560 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN
MATERIALLEATHER SEALING ELEMENT B
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT A
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 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 639265?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 639265?
639265 is a SEAL,PLAIN ENCASED.
What is the NSN for 639265?
639265 is cataloged in the U.S. Government catalog under NSN 5330-00-844-0097. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 639265

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.