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R6-6 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R6-6: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, inside_diameter: 3.750 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: CADMIUM OVERALL, spring_free_length: 12.600 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-177-8007, 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
R6-6
NSN: 5310-01-177-8007
NIINs: 011778007, 013978207
FSC: 5310 — Nuts and Washers
CAGE: 22202 — RANDOLPH CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
inside_diameter3.750 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentCADMIUM OVERALL
spring_free_length12.600 INCHES NOMINAL IN
spring_deflection_rate2000.000 POUNDS PER INCH NOMINAL LBS
material_document_and_classificationASTM A 689 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-177-8007
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R6-6 · 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
SUBSTITUTES & CROSS-REFERENCES 1
00-0440Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R6-6?
R6-6 is a SPRING,HELICAL,COMPRESSION.
What parts can replace R6-6?
There is 1 known substitute for R6-6: 00-0440. Substitute compatibility should be verified for your specific system.
What is the NSN for R6-6?
R6-6 is cataloged in the U.S. Government catalog under NSN 5310-01-177-8007. 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.