PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 155-7738
155-7738 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL, hardness_rating: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL, inner_groove_depth: 0.031 INCHES MAXIMUM IN, inner_groove_width: 0.125 INCHES MAXIMUM IN, peripheral_diameter: 6.000 INCHES MAXIMUM IN, center_hole_diameter: 5.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-446-5915, 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
155-7738
NSN: 5330-00-446-5915
FSC: 5330
CAGE: 80662 — POLAN INDUSTRIES (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
hardness_rating40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
inner_groove_depth0.031 INCHES MAXIMUM IN
inner_groove_width0.125 INCHES MAXIMUM IN
peripheral_diameter6.000 INCHES MAXIMUM IN
center_hole_diameter5.750 INCHES NOMINAL IN
cross-sectional_height0.312 INCHES MAXIMUM IN
cross-sectional_shape_styleSPECIAL
material_document_and_classificationMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-446-5915
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 155-7738 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
•
PERIPHERAL DIAMETER: 6.000 INCHES MAXIMUM IN
•
INNER GROOVE WIDTH: 0.125 INCHES MAXIMUM IN
•
INNER GROOVE DEPTH: 0.031 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
•
CROSS-SECTIONAL HEIGHT: 0.312 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 5.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL DIAMETER6.000 INCHES MAXIMUM IN
INNER GROOVE WIDTH0.125 INCHES MAXIMUM IN
INNER GROOVE DEPTH0.031 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESPECIAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
CROSS-SECTIONAL HEIGHT0.312 INCHES MAXIMUM IN
CENTER HOLE DIAMETER5.750 INCHES NOMINAL IN
HARDNESS RATING40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
9B9193Interchangeable
interchangeable cross-reference
interchangeable
GPW10141Interchangeable
interchangeable cross-reference
interchangeable
X489Interchangeable
interchangeable cross-reference
interchangeable
19154Interchangeable
interchangeable cross-reference
interchangeable
9B6251Interchangeable
interchangeable cross-reference
interchangeable
S033019154Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 155-7738?
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 155-7738?
155-7738 is a PACKING,PREFORMED.
What parts can replace 155-7738?
There are 9 known substitutes for 155-7738: 9B9193, GPW10141, X489 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 155-7738?
155-7738 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-446-5915. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 155-7738

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026