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Technical Data Sheet
37902 ✓ Verified by PartsTable
Lindy · 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 TRANSFORMER,AUDIO FREQUENCY is a Lindy industrial component. Key specifications include material: STEEL, body_length: 0.547 INCHES MAXIMUM IN, thread_class: 2A NUT THREADUNABLE TO DECODE A, thread_length: 0.500 INCHES NOMINAL STUD THREADUNABLE TO DECODE IN, inclosure_type: FULLY INCLOSED, overall_length: 1.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-248-3831, 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
37902
NSN: 5331-00-248-3831
FSC: 5331 — O-RING
CAGE: 05228 — PTI TECHNOLOGIES INC. (USA)
SPECIFICATIONS
materialSTEEL
body_length0.547 INCHES MAXIMUM IN
thread_class2A NUT THREADUNABLE TO DECODE A
thread_length0.500 INCHES NOMINAL STUD THREADUNABLE TO DECODE IN
inclosure_typeFULLY INCLOSED
overall_length1.500 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) SINGLE GROUP
frequency_rating5.0 KILOHERTZ NOMINAL SINGLE COMPONENT
outside_diameter0.430 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
thread_directionRIGHT-HAND NUT THREADUNABLE TO DECODE
surface_treatmentOXIDE OVERALL
nominal_thread_size0.312 INCHES NUT THREADUNABLE TO DECODE IN
NSN5331-00-248-3831
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 37902 MFR: Lindy ⚠ 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
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 0.430 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.430 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
DC500-2Interchangeable
interchangeable cross-reference
interchangeable
2Interchangeable
interchangeable cross-reference
interchangeable
ASHRAE 52.1Interchangeable
interchangeable cross-reference
interchangeable
44-166Interchangeable
interchangeable cross-reference
interchangeable
K10E44AInterchangeable
interchangeable cross-reference
interchangeable
37902Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37902?
37902 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Lindy.
What parts can replace 37902?
There are 25 known substitutes for 37902: DC500-2, 2, ASHRAE 52.1 and 22 more. Substitute compatibility should be verified for your specific system.
Is 37902 still available?
37902 is currently cancelled.
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