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Technical Data Sheet
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43040 — TRANSFORMER,POWER

✓ Government record, cited
Bestway · ORING SEAL
PRODUCT OVERVIEW

43040: TRANSFORMER,POWER.

FASHION LOUNGE - Safety valves - Sturdy pre-tested vinyl - Coil beam construction - See-thru window - Repair patch included - Content: One lounge, repair patch - Made in China This part is cataloged in the U.S. Government catalog under NSN 5330-00-290-1425, 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
43040
NSN: 5330-00-290-1425
NIINs: 002901425, 009520614, 011226374, 012021257, 016239070
FSC: 5330 — Packing and Gasket Materials
CAGE: 97907 — TEREX CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY BAND
body_width5.620 INCHES NOMINAL IN
body_height3.380 INCHES NOMINAL IN
body_length7.500 INCHES NOMINAL IN
overall_width0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_height11.875 INCHES NOMINAL IN
overall_length11.875 INCHES NOMINAL IN
inside_diameter2.060 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
outside_diameter1.980 INCHES NOMINAL IN
NSN5330-00-290-1425
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 43040 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
•
CROSS-SECTIONAL THICKNESS: 0.062 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803 +3413-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 1.980 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.562 INCHES NOMINAL IN
•
MATERIAL: PAPER AND GLUE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803 +3413-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER1.980 INCHES NOMINAL IN
APERTURE DIAMETER1.562 INCHES NOMINAL IN
MATERIALPAPER AND GLUE OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
1503542Reference document
Same NSN cross-reference
Reference document — Secondary reference
16B853572Reference document
Same NSN cross-reference
Reference document — Secondary reference
K0RK01DGRADEE12Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
GPW9186Reference document
Same NSN cross-reference
Reference document — Secondary reference
K0RK0IDGRADE1201Reference document
Same NSN cross-reference
Reference document — Secondary reference
131347HReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 43040?
43040 is a TRANSFORMER,POWER manufactured by Bestway.
What parts can replace 43040?
There are 7 known substitutes for 43040: 1503542, 16B853572, K0RK01DGRADEE12 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43040?
43040 is cataloged in the U.S. Government catalog under NSN 5330-00-290-1425. 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.