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331927 ✓ 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 SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.188 INCHES NOMINAL IN, temp_rating: -20.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, construction: SOLID, housing_bore_diameter: 1.250 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 5330-00-071-1937, 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
331927
NSN: 5330-00-071-1937
FSC: 5330
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.188 INCHES NOMINAL IN
temp_rating-20.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
constructionSOLID
housing_bore_diameter1.250 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.875 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-071-1937
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 331927 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
•
ACCOMMODATED SHAFT DIAMETER: 0.875 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
HOUSING BORE DIAMETER: 1.250 INCHES NOMINAL IN
•
SEAL WIDTH: 0.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER0.875 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
MATERIALSTEEL INTERNALLY MOLDED-IN REINFORCEMENT
HOUSING BORE DIAMETER1.250 INCHES NOMINAL IN
SEAL WIDTH0.188 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
CONSTRUCTIONSOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
6158HIL7Interchangeable
interchangeable cross-reference
interchangeable
331927Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 331927?
331927 is a SEAL,PLAIN.
What parts can replace 331927?
There are 2 known substitutes for 331927: 6158HIL7, 331927. Substitute compatibility should be verified for your specific system.
What is the NSN for 331927?
331927 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-071-1937. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026