PartsTable
Technical Data Sheet
Download PDF

172MLR1 — SEAL RING,METAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

172MLR1: SEAL RING,METAL.

The SEAL RING,METAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, ring_style: EXPANDING CONCENTRIC, joint_style: INTERLOCKING JOINT, overall_width: 0.1250 INCHES NOMINAL IN, outside_diameter: 9.813 INCHES NOMINAL IN, radial_wall_thickness: 0.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-287-0580, 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
172MLR1
NSN: 5330-00-287-0580
FSC: 5330 — Packing and Gasket Materials
CAGE: 05414 — MALCO PLASTICS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
ring_styleEXPANDING CONCENTRIC
joint_styleINTERLOCKING JOINT
overall_width0.1250 INCHES NOMINAL IN
outside_diameter9.813 INCHES NOMINAL IN
radial_wall_thickness0.2500 INCHES NOMINAL IN
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN5330-00-287-0580
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 172MLR1 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
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
OUTSIDE DIAMETER: 9.813 INCHES NOMINAL IN
•
JOINT STYLE: INTERLOCKING JOINT
•
RADIAL WALL THICKNESS: 0.2500 INCHES NOMINAL IN
•
RING STYLE: EXPANDING CONCENTRIC
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL WIDTH0.1250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
OUTSIDE DIAMETER9.813 INCHES NOMINAL IN
JOINT STYLEINTERLOCKING JOINT
RADIAL WALL THICKNESS0.2500 INCHES NOMINAL IN
RING STYLEEXPANDING CONCENTRIC
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
4806BReference document
Same NSN cross-reference
Reference document — Secondary reference
4987607Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4806DReference document
Same NSN cross-reference
Reference document — Secondary reference
5330PL0811764Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 172MLR1?
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 172MLR1?
172MLR1 is a SEAL RING,METAL.
What parts can replace 172MLR1?
There are 4 known substitutes for 172MLR1: 4806B, 4987607, 4806D and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 172MLR1?
172MLR1 is cataloged in the U.S. Government catalog under NSN 5330-00-287-0580. 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 — 172MLR1

✓ 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.