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PartsTable / COMPONENT / N7557
N7557 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The TUBE,SUCTION,SURGICAL is a the manufacturer industrial component. Key specifications include overall_length: 245.0 MILLIMETERS NOMINAL MM, nominal_diameter: 6.0 MILLIMETERS MM, part_name_assigned_by_controlling_agency: TUBE SUCTION TONSIL GOODHILL PYNCHON. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-6635, 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
N7557
NSN: 5310-00-275-6635
FSC: 5310
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
overall_length245.0 MILLIMETERS NOMINAL MM
nominal_diameter6.0 MILLIMETERS MM
special_featuresGOODHILL-PYNCHON TONSIL SUCTION TUBE; 6 MM DIAMETER, WITH OPENINGS AROUND END OF TIP; WORKING LENGTH: 65 MM; OVERALL LENGTH: 245 MM (9.646 IN) MM
part_name_assigned_by_controlling_agencyTUBE SUCTION TONSIL GOODHILL PYNCHON
NSN5310-00-275-6635
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: N7557 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
4906096Interchangeable
interchangeable cross-reference
interchangeable
M3331-5110Interchangeable
interchangeable cross-reference
interchangeable
51760Interchangeable
interchangeable cross-reference
interchangeable
F602Interchangeable
interchangeable cross-reference
interchangeable
292-000Interchangeable
interchangeable cross-reference
interchangeable
10-0-7754 AND 10-0-7745Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N7557?
N7557 is a TUBE,SUCTION,SURGICAL.
What parts can replace N7557?
There are 32 known substitutes for N7557: 4906096, M3331-5110, 51760 and 29 more. Substitute compatibility should be verified for your specific system.
Is N7557 still available?
N7557 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026