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Technical Data Sheet
37-27 ✓ Verified by PartsTable
Bestway · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include width: 0.125 INCHES NOMINAL IN, material: PLASTIC BOARD, tip_type: FLAT TIP, body_style: BLOCK TYPE, body_width: 4.360 INCHES NOMINAL IN, case_style: SQUARE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-154-8473, 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
37-27
NSN: 5330-00-154-8473
FSC: 5330
CAGE: 42698 — NATIONAL MACHINERY CO (USA)
SPECIFICATIONS
width0.125 INCHES NOMINAL IN
materialPLASTIC BOARD
tip_typeFLAT TIP
body_styleBLOCK TYPE
body_width4.360 INCHES NOMINAL IN
case_styleSQUARE
seal_width0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
body_height8.000 INCHES NOMINAL IN
body_length9.000 INCHES NOMINAL IN
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
constructionSOLID
gross_weight1.0 SHIPPING CONTAINER POUNDS
NSN5330-00-154-8473
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 37-27 MFR: Bestway ⚠ 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 SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLE: ANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
SEAL WIDTH: 0.563 INCHES NOMINAL IN
CASE STYLE: SQUARE
HOUSING BORE DIAMETER: 6.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER: 3.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
SEAL WIDTH0.563 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALSTEEL CASE
HOUSING BORE DIAMETER6.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER3.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
6137Interchangeable
interchangeable cross-reference
interchangeable
905744Interchangeable
interchangeable cross-reference
interchangeable
8333722Interchangeable
interchangeable cross-reference
interchangeable
G727Interchangeable
interchangeable cross-reference
interchangeable
VG-486Interchangeable
interchangeable cross-reference
interchangeable
8322DRInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37-27?
37-27 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Bestway.
What parts can replace 37-27?
There are 19 known substitutes for 37-27: 6137, 905744, 8333722 and 16 more. Substitute compatibility should be verified for your specific system.
Is 37-27 still available?
37-27 is currently cancelled.
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