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Technical Data Sheet
PartsTable / MRO / 537-75
537-75 ✓ Verified by PartsTable
Hama · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The HEAT SHIELD,WHEEL,AIRCRAFT is a Hama industrial component. Key specifications include color: BLACK, material: ALUMINUM ALLOY, case_style: SQUARE, seal_width: 0.625 INCHES NOMINAL IN, inside_diameter: 0.257 INCHES NOMINAL IN, outside_diameter: 0.625 INCHES MAXIMUM 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 5330-00-042-8647, 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
MRO→ MRO_GENERAL→ 537-75
NSN: 5330-00-042-8647
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
colorBLACK
materialALUMINUM ALLOY
case_styleSQUARE
seal_width0.625 INCHES NOMINAL IN
inside_diameter0.257 INCHES NOMINAL IN
outside_diameter0.625 INCHES MAXIMUM IN
special_features1 COLLAR INCLUDED
style_designatorROUND
attachment_methodSETSCREWS
overall_thickness0.750 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
nominal_thread_size0.164 INCHES SCREW HOLE IN
NSN5330-00-042-8647
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 537-75 MFR: Hama ⚠ 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
•
HOUSING BORE DIAMETER: 6.750 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 5.375 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 6.756 INCHES NOMINAL IN
•
MATERIAL: LEATHER SEALING ELEMENT
•
CASE STYLE: SQUARE
•
SEALING ELEMENT STYLE: ANGULAR
•
SURFACE TREATMENT: PLASTIC CASE
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER6.750 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER5.375 INCHES NOMINAL IN
OUTSIDE DIAMETER6.756 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT
MATERIALSTEEL CASE
CASE STYLESQUARE
SEALING ELEMENT STYLEANGULAR
SURFACE TREATMENTPLASTIC CASE
SEAL WIDTH0.625 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
53775Interchangeable
interchangeable cross-reference
interchangeable
504-7925-002Interchangeable
interchangeable cross-reference
interchangeable
537-5Interchangeable
interchangeable cross-reference
interchangeable
1630PL0661996Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 537-75?
537-75 is a HEAT SHIELD,WHEEL,AIRCRAFT manufactured by Hama. It is classified as a MRO (MRO_GENERAL).
What parts can replace 537-75?
There are 4 known substitutes for 537-75: 53775, 504-7925-002, 537-5 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 537-75?
537-75 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-042-8647. 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