PartsTable
Technical Data Sheet
PartsTable / MRO / 603-7
603-7 ✓ Verified by PartsTable
— · 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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include material: STEEL CORROSION RESISTING OVERALL, tip_type: PHILLIPS CROSS, nut_style: ROUND, sterility: STERILE, body_style: STRIP, bore_shape: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-146-7445, 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→ 603-7
NSN: 5330-00-146-7445
FSC: 5330
CAGE: 81601 — NORFOLK NAVAL SHIPYARD (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
tip_typePHILLIPS CROSS
nut_styleROUND
sterilitySTERILE
body_styleSTRIP
bore_shapeSTRAIGHT
shell_typeSOLID
body_length0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
design_typeREUSABLE
shaft_styleROUND
shank_shapeROUND
blade_length7.000 INCHES NOMINAL IN
NSN5330-00-146-7445
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 603-7 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: 0.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE CORNER RADIUS: 1.312 INCHES NOMINAL IN
•
APERTURE LENGTH: 20.312 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.875 INCHES NOMINAL IN
•
APERTURE WIDTH: 6.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE CORNER RADIUS1.312 INCHES NOMINAL IN
APERTURE LENGTH20.312 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.875 INCHES NOMINAL IN
APERTURE WIDTH6.125 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
BOLT HOLE QUANTITY2
OVERALL LENGTH21.188 INCHES NOMINAL IN
OVERALL WIDTH7.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
FS8507Interchangeable
interchangeable cross-reference
interchangeable
72-6970-356Interchangeable
interchangeable cross-reference
interchangeable
6037Interchangeable
interchangeable cross-reference
interchangeable
G7780PC52Interchangeable
interchangeable cross-reference
interchangeable
3090-2PC7Interchangeable
interchangeable cross-reference
interchangeable
G7930PC79Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 603-7?
603-7 is a RESISTOR,VARIABLE,WIRE WOUND,NON. It is classified as a MRO (MRO_GENERAL).
What parts can replace 603-7?
There are 19 known substitutes for 603-7: FS8507, 72-6970-356, 6037 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 603-7?
603-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-146-7445. 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