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4502A ✓ Verified by PartsTable
— · 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 TERMINAL,STUD is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL EXCEPT INSULATION, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_height: 0.225 INCHES IN, terminal_length: 0.125 INCHES IN, largest_diameter: 0.040 INCHES SINGLE END IN, overall_diameter: 0.125 INCHES 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 5330-00-251-4721, 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
4502A
NSN: 5330-00-251-4721
FSC: 5330
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL EXCEPT INSULATION
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_height0.225 INCHES IN
terminal_length0.125 INCHES IN
largest_diameter0.040 INCHES SINGLE END IN
overall_diameter0.125 INCHES IN
aperture_diameter1.062 INCHES NOMINAL IN
basic_shape_styleTUBULAR, ROUND
surface_treatmentTIN OVERALL EXCEPT INSULATION SINGLE LAYER
thru-hole_diameter0.030 INCHES IN
bolt_circle_diameter2.250 INCHES NOMINAL IN
major_bushing_length0.040 INCHES IN
NSN5330-00-251-4721
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4502A MFR: OEM ⚠ 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
•
HOLE DIAMETER: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
SIDE RADIUS FROM GASKET CENTER: 0.875 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.062 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 2.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: HH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: PAPER AND GLUE AND GLYCERIN OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
SIDE RADIUS FROM GASKET CENTER0.875 INCHES NOMINAL IN
APERTURE DIAMETER1.062 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALPAPER AND GLUE AND GLYCERIN OVERALL
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
61891Interchangeable
interchangeable cross-reference
interchangeable
170234R1Interchangeable
interchangeable cross-reference
interchangeable
HM-804810Interchangeable
interchangeable cross-reference
interchangeable
1228T644Interchangeable
interchangeable cross-reference
interchangeable
22-666Interchangeable
interchangeable cross-reference
interchangeable
G60104Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4502A?
4502A is a TERMINAL,STUD.
What parts can replace 4502A?
There are 20 known substitutes for 4502A: 61891, 170234R1, HM-804810 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4502A?
4502A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-4721. 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