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3727 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
Bestway · ORING SEAL
PRODUCT OVERVIEW

3727: CONNECTOR,RECEPTACLE,ELECTRICAL.

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 U.S.

Government catalog 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
3727
NSN: 5330-00-154-8473
NIINs: 001548473, 001633826, 001870700, 002719265, 002980533, 004324820, 006242934, 006411648, 007583727, 008644445, 010207810, 015179701, 016026094
FSC: 5330 — Packing and Gasket Materials
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: 3727 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
•
SEAL WIDTH: 0.563 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 6.250 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 3.250 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.563 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER6.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER3.250 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
55448Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3727?
3727 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Bestway.
What parts can replace 3727?
There is 1 known substitute for 3727: 55448. Substitute compatibility should be verified for your specific system.
What is the NSN for 3727?
3727 is cataloged in the U.S. Government catalog under NSN 5330-00-154-8473. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.